{"title":"Replacement Reagents","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"CollectionPage\",\n  \"@id\": \"https:\/\/www.pstpoolsupplies.com\/collections\/taylor-replacement-pool-reagents\",\n  \"name\": \"Taylor Replacement Pool Test Reagents\",\n  \"description\": \"Shop pool test reagents from Taylor Technologies, LaMotte \u0026 Pentair. DPD powder \u0026 liquid, calcium buffer, hardness reagent, OTO solutions \u0026 WaterLink cart disks. From $10.20 at PST Pool Supplies.\",\n  \"url\": \"https:\/\/www.pstpoolsupplies.com\/collections\/taylor-replacement-pool-reagents\",\n  \"provider\": { \"@type\": \"Organization\", \"name\": \"PST Pool Supplies\", \"url\": \"https:\/\/www.pstpoolsupplies.com\" },\n  \"offers\": { \"@type\": \"AggregateOffer\", \"priceCurrency\": \"USD\", \"lowPrice\": \"10.20\", \"highPrice\": \"253.70\" }\n}\n\u003c\/script\u003e\n\n\u003ch1\u003eTaylor Replacement Pool Test Reagents\u003c\/h1\u003e\n\n\u003cp\u003eKeep your pool water test kit accurate and ready with \u003cstrong\u003ereplacement pool test reagents\u003c\/strong\u003e from Taylor Technologies, LaMotte, and Pentair. PST Pool Supplies stocks the reagent refills used in the most common professional pool water test kits — DPD powder and liquid for free and combined chlorine, calcium buffer, hardness reagent, OTO solutions, and LaMotte WaterLink photometric analyzer disks, starting from $10.20.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTaylor Technologies\u003c\/strong\u003e is the standard in professional pool water testing — their K-2006 and K-2005 test kits are used by pool professionals and serious pool owners worldwide. Replacement reagents include: \u003cstrong\u003eR-0870-J DPD Powder\u003c\/strong\u003e (dry DPD reagent for total chlorine and combined chlorine testing in Taylor's drop-count method), available in multiple sizes up to 113 grams; \u003cstrong\u003eR-0002-C DPD Liquid\u003c\/strong\u003e (liquid DPD #1 indicator for free chlorine drop-count testing); \u003cstrong\u003eR-0012-C Hardness Reagent\u003c\/strong\u003e (the titrating reagent for total hardness\/calcium hardness drop-count testing); and \u003cstrong\u003eR-0010-A Calcium Buffer\u003c\/strong\u003e (the buffer solution used alongside the hardness reagent that creates the alkaline pH needed for the hardness titration to work correctly — the calcium buffer and hardness reagent are always used as a pair). \u003cstrong\u003ePentair Solution 3 Reagent\u003c\/strong\u003e (R161185, 1 oz) is a reagent used in the Pentair No. 78 and 7000 series test kits for acid demand and total alkalinity testing. \u003cstrong\u003ePentair OTO Test Solutions\u003c\/strong\u003e provide the orthotolidine-based yellow-color total chlorine test for simpler OTO-style test kits. The \u003cstrong\u003eLaMotte WaterLink Reagent Cart Disk\u003c\/strong\u003e is the consumable reagent disk used in LaMotte's WaterLink Spin photometric analyzers — laboratory-grade automated water analysis instruments used in professional pool service operations, providing precise multi-parameter readings from a single water sample.\u003c\/p\u003e\n\n\u003cp\u003eReagent accuracy is the foundation of reliable pool water testing — expired or degraded reagents produce incorrect readings that lead to over- or under-treatment of pool chemistry. Taylor Technologies recommends replacing all reagents annually even if not fully consumed, as liquid reagents degrade with exposure to light, temperature fluctuation, and oxidation from pool chemical vapors. Store reagents in a cool, dark location away from pool chemicals — reagent bottles stored on the pool deck in direct sunlight degrade rapidly. When a Taylor test produces a reading that seems inconsistent with how the pool looks and feels, expired reagents are frequently the cause. DPD powder (R-0870-J) has a longer shelf life than DPD liquid when stored properly, making it preferable for test kits used infrequently.\u003c\/p\u003e\n\n\u003cp\u003eShop pool test reagents and ensure your water chemistry readings are always accurate and reliable.\u003c\/p\u003e\n\n\u003c!-- Meta Description: Shop Taylor Technologies, LaMotte \u0026 Pentair pool test reagents. DPD powder \u0026 liquid, calcium buffer, hardness reagent \u0026 WaterLink disks. From $10.20 at PST Pool Supplies. --\u003e\n","products":[{"product_id":"refill-colorq-pro-7","title":"Refill - Colorq Pro 7","description":"R-2056 LaMotte Reagent Refill Test Kit for Color-Q Pro 7","brand":"LaMotte Company","offers":[{"title":"Default Title","offer_id":41969338810433,"sku":"PST-_R-2056","price":82.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1002832.jpg?v=1773080207"},{"product_id":"pentair-744000220-ak-color-all-acutrol-dpd-chemical","title":"Pentair 744000220 AK Color All Acutrol DPD Chemical","description":"Pentair 744000220 AK Color All Acutrol DPD Chemical. The AK Color All Buffer Chemical works in the AcuTrol AK Colormetric Sensor. 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Now in-store pool and spa analysts can achieve greater precision than current water labs without time consuming procedures or sacrificing accuracy by using test strip scanners.\u003c\/p\u003e\r\u003cp\u003e\u003cstrong\u003eTest Parameters:\u003c\/strong\u003e\u003c\/p\u003e\r\u003cul\u003e\r\u003cli\u003eFree Chlorine - 0-15 ppm\u003c\/li\u003e\r\u003cli\u003eTotal Chlorine - 0-15 ppm\u003c\/li\u003e\r\u003cli\u003eBromine - 0-33 ppm\u003c\/li\u003e\r\u003cli\u003epH - 6.4-8.6\u003c\/li\u003e\r\u003cli\u003eCalcium Hardness - 0-800 ppm\u003c\/li\u003e\r\u003cli\u003eTotal Alkalinity - 0-250 ppm\u003c\/li\u003e\r\u003cli\u003eCyanuric Acid - 5-150 ppm\u003c\/li\u003e\r\u003cli\u003eCopper - 0-3.0 ppm\u003c\/li\u003e\r\u003cli\u003eIron - 0-3.0 ppm\u003c\/li\u003e\r\u003cli\u003eSalt - 0-5000 ppm\u003c\/li\u003e\r\u003c\/ul\u003e\r\u003cp\u003e*For use with WaterLink Spin Touch photometer\u003c\/p\u003e","brand":"LaMotte Company","offers":[{"title":"Default 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It ensures accurate readings for professional water analysis and is identified by MPN 6903A-M.","brand":"LaMotte","offers":[{"title":"Default Title","offer_id":42278972358721,"sku":"PST-6903AM","price":78.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1024590.jpg?v=1773082633"},{"product_id":"phenol-red-ph-reagent-100-count-6915a-j","title":"Phenol Red (PH) Reagent, 100 Count, 6915A-J","description":"This Phenol Red reagent is used for pH testing, with 100 tests included. It is a crucial component for accurate water chemistry analysis. MPN 6915A-J.","brand":"LaMotte","offers":[{"title":"Default Title","offer_id":42279006240833,"sku":"PST-6915AJ","price":16.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1024593.jpg?v=1773088148"},{"product_id":"fas-dpd-titrating-32oz-r-0871-f","title":"FAS-DPD Titrating, 32oz, R-0871-F","description":"This FAS-DPD Titrating solution, MPN R-0871-F, comes in a 32oz bottle. It is used for precise water testing applications.","brand":"taylor","offers":[{"title":"Default Title","offer_id":42279024721985,"sku":"PST-TTR0871F","price":66.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/1024000.jpg?v=1773080510"},{"product_id":"lamotte-p-6741-h-dpd-1b-free-chlorine-liquid-reagent-60-ml","title":"LaMotte P-6741-H DPD 1B Free Chlorine Liquid Reagent, 60 mL","description":"\u003cstyle\u003e  .lmdpd1b-wrap, .lmdpd1b-wrap * { box-sizing: border-box; }  .lmdpd1b-wrap {    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;    color: #1a1a1a;    line-height: 1.6;  }  \/* Hero (compact) *\/  .lmdpd1b-hero {    background: linear-gradient(135deg, #0080ff 0%, #e8f4fa 100%);    color: #fff;    padding: 36px 32px;    border-radius: 14px;    text-align: center;    margin-bottom: 28px;  }  .lmdpd1b-hero h1 { font-size: 2em; margin: 0 0 8px; font-weight: 800; letter-spacing: -0.02em; }  .lmdpd1b-tagline { font-size: 1.1em; opacity: 0.95; margin: 0 0 18px; }  .lmdpd1b-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }  .lmdpd1b-badge {    background: rgba(255,255,255,0.18);    border: 1px solid rgba(255,255,255,0.3);    color: #fff;    padding: 6px 14px;    border-radius: 50px;    font-size: 0.85em;    font-weight: 600;  }  \/* Intro *\/  .lmdpd1b-intro {    max-width: 800px;    margin: 0 auto 32px;    text-align: center;    font-size: 1.05em;    color: #333;  }  \/* Stat strip *\/  .lmdpd1b-stats {    background: linear-gradient(135deg, #003a70 0%, #0080ff 100%);    color: #fff;    border-radius: 14px;    padding: 24px;    display: grid;    grid-template-columns: repeat(5, 1fr);    gap: 12px;    margin-bottom: 36px;  }  .lmdpd1b-stat { text-align: center; }  .lmdpd1b-stat-value { font-size: 1.5em; font-weight: 800; color: #aedcff; }  .lmdpd1b-stat-label { font-size: 0.78em; opacity: 0.85; text-transform: uppercase; letter-spacing: 0.05em; margin-top: 4px; }  \/* Section headings *\/  .lmdpd1b-section { margin-bottom: 36px; }  .lmdpd1b-section \u003e h2 { font-size: 1.5em; margin: 0 0 18px; text-align: center; color: #0066cc; }  \/* Feature card grid *\/  .lmdpd1b-feature-grid {    display: grid;    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));    gap: 16px;  }  .lmdpd1b-feature-card {    background: #fff;    border: 1px solid #e1e6ed;    border-radius: 12px;    padding: 22px;    transition: transform 0.2s, box-shadow 0.2s;  }  .lmdpd1b-feature-card:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(0,128,255,0.14); }  .lmdpd1b-emoji { font-size: 1.8em; }  .lmdpd1b-feature-card h5 { margin: 10px 0 6px; font-size: 1.05em; color: #1a1a1a; }  .lmdpd1b-feature-card p { margin: 0; color: #444; font-size: 0.95em; }  \/* Warning *\/  .lmdpd1b-warning {    background: #fff7e0;    border-left: 5px solid #f5a623;    border-radius: 10px;    padding: 18px 22px;    margin-bottom: 36px;  }  .lmdpd1b-warning h4 { margin: 0 0 6px; color: #8a5b00; font-size: 1.05em; }  .lmdpd1b-warning p { margin: 0; color: #5a3d00; font-size: 0.95em; }  \/* Spec grid *\/  .lmdpd1b-spec-grid {    display: grid;    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));    background: #f7f8fc;    border-radius: 14px;    overflow: hidden;  }  .lmdpd1b-spec-row {    display: flex;    justify-content: space-between;    gap: 12px;    padding: 12px 18px;    border-bottom: 1px solid #e1e6ed;    font-size: 0.95em;  }  .lmdpd1b-spec-key { font-weight: 600; color: #0066cc; }  .lmdpd1b-spec-val { color: #1a1a1a; text-align: right; }  \/* FAQ *\/  .lmdpd1b-faq-card {    background: #fff;    border: 1px solid #e1e6ed;    border-radius: 10px;    padding: 18px 22px;    margin-bottom: 12px;  }  .lmdpd1b-faq-card h4 { margin: 0 0 6px; color: #0066cc; font-size: 1.02em; }  .lmdpd1b-faq-card p { margin: 0; color: #333; font-size: 0.95em; }  \/* CTA *\/  .lmdpd1b-cta {    background: linear-gradient(135deg, #0080ff 0%, #e8f4fa 100%);    color: #fff;    border-radius: 14px;    padding: 32px 28px;    text-align: center;  }  .lmdpd1b-cta h2 { font-size: 1.6em; margin: 0 0 8px; }  .lmdpd1b-cta p { margin: 0 0 18px; font-size: 1em; opacity: 0.95; }  .lmdpd1b-perks { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }  .lmdpd1b-perk {    background: rgba(255,255,255,0.18);    border: 1px solid rgba(255,255,255,0.3);    padding: 6px 14px;    border-radius: 50px;    font-size: 0.88em;    font-weight: 600;  }  \/* Responsive *\/  @media (max-width: 700px) {    .lmdpd1b-hero h1 { font-size: 1.5em; }    .lmdpd1b-stats { grid-template-columns: repeat(2, 1fr); }  }\u003c\/style\u003e\u003cdiv class=\"lmdpd1b-wrap\"\u003e  \u003csection class=\"lmdpd1b-hero\"\u003e    \u003ch1\u003eLaMotte P-6741-H DPD 1B Free Chlorine Liquid Reagent, 60 mL\u003c\/h1\u003e    \u003cp class=\"lmdpd1b-tagline\"\u003eAccurate free chlorine, drop by drop.\u003c\/p\u003e        \u003cdiv class=\"lmdpd1b-badges\"\u003e      \u003cspan class=\"lmdpd1b-badge\"\u003eAuthorized LaMotte Dealer\u003c\/span\u003e\u003cspan class=\"lmdpd1b-badge\"\u003eFree Shipping\u003c\/span\u003e\u003cspan class=\"lmdpd1b-badge\"\u003e60 mL Bottle\u003c\/span\u003e\u003cspan class=\"lmdpd1b-badge\"\u003ePairs with DPD 1A\u003c\/span\u003e    \u003c\/div\u003e      \u003c\/section\u003e  \u003cp class=\"lmdpd1b-intro\"\u003eThe \u003cstrong\u003eLaMotte DPD 1B Liquid Reagent (MPN P-6741-H, SKU PST-P6741H)\u003c\/strong\u003e is the buffer half of LaMotte's two-part liquid DPD system for measuring free available chlorine in pool, spa, drinking water, and industrial water samples. Paired with DPD 1A (P-6740-H), it develops a clean pink color that reads accurately on LaMotte chlorine comparators and colorimeters. Use it as a direct liquid alternative to DPD tablets in your existing LaMotte test kit.\u003c\/p\u003e  \u003csection class=\"lmdpd1b-stats\"\u003e    \u003cdiv class=\"lmdpd1b-stat\"\u003e\n\u003cdiv class=\"lmdpd1b-stat-value\"\u003e60 mL\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-stat-label\"\u003eBottle Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-stat\"\u003e\n\u003cdiv class=\"lmdpd1b-stat-value\"\u003e~288\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-stat-label\"\u003eTests Per Bottle\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-stat\"\u003e\n\u003cdiv class=\"lmdpd1b-stat-value\"\u003e5 or 10 mL\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-stat-label\"\u003eSample Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-stat\"\u003e\n\u003cdiv class=\"lmdpd1b-stat-value\"\u003e12 mo\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-stat-label\"\u003eShelf Life\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-stat\"\u003e\n\u003cdiv class=\"lmdpd1b-stat-value\"\u003eGround\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-stat-label\"\u003eShip Method\u003c\/div\u003e\n\u003c\/div\u003e  \u003c\/section\u003e  \u003csection class=\"lmdpd1b-section\"\u003e    \u003ch2\u003eWhy PST Customers Pick This\u003c\/h2\u003e    \u003cdiv class=\"lmdpd1b-feature-grid\"\u003e      \u003cdiv class=\"lmdpd1b-feature-card\"\u003e\n\u003cdiv class=\"lmdpd1b-emoji\"\u003e🧪\u003c\/div\u003e\n\u003ch5\u003eFree Chlorine Accuracy\u003c\/h5\u003e\n\u003cp\u003eUsed with DPD 1A to develop the pink color that LaMotte comparators and colorimeters read for \u003cstrong\u003efree available chlorine\u003c\/strong\u003e, the chlorine that actually sanitizes your pool or spa.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-feature-card\"\u003e\n\u003cdiv class=\"lmdpd1b-emoji\"\u003e💧\u003c\/div\u003e\n\u003ch5\u003eLiquid Format\u003c\/h5\u003e\n\u003cp\u003eA drop-in liquid alternative to DPD tablets. No crushing, no powder residue, no slow dissolve, just count drops and read the color.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-feature-card\"\u003e\n\u003cdiv class=\"lmdpd1b-emoji\"\u003e🎯\u003c\/div\u003e\n\u003ch5\u003eTwo-Part System\u003c\/h5\u003e\n\u003cp\u003eDesigned to be used with \u003cstrong\u003eDPD 1A (P-6740-H)\u003c\/strong\u003e. Both reagents are added to a 5 or 10 mL water sample before reading.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-feature-card\"\u003e\n\u003cdiv class=\"lmdpd1b-emoji\"\u003e⚙️\u003c\/div\u003e\n\u003ch5\u003eComparator and Colorimeter Ready\u003c\/h5\u003e\n\u003cp\u003eWorks with LaMotte ColorQ, Smart3, and traditional octa-slide chlorine comparators that call for liquid DPD reagents.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-feature-card\"\u003e\n\u003cdiv class=\"lmdpd1b-emoji\"\u003e🌊\u003c\/div\u003e\n\u003ch5\u003ePool, Spa, and More\u003c\/h5\u003e\n\u003cp\u003eValidated for pool and spa water, drinking water, food and beverage, cooling and boiler water, laundry, and wastewater sanitation testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-feature-card\"\u003e\n\u003cdiv class=\"lmdpd1b-emoji\"\u003e🧰\u003c\/div\u003e\n\u003ch5\u003e60 mL Refill Bottle\u003c\/h5\u003e\n\u003cp\u003eThe 60 mL size delivers roughly \u003cstrong\u003e288 tests\u003c\/strong\u003e, enough for a full season of weekly testing or a busy service route's monthly restock.\u003c\/p\u003e\n\u003c\/div\u003e    \u003c\/div\u003e  \u003c\/section\u003e    \u003cdiv class=\"lmdpd1b-warning\"\u003e    \u003ch4\u003eHandling Notice\u003c\/h4\u003e    \u003cp\u003eDPD 1B is a laboratory reagent. Keep the bottle \u003cstrong\u003etightly capped, stored cool and dry, and away from direct sunlight\u003c\/strong\u003e to preserve accuracy. Avoid skin and eye contact, wash hands after testing, and keep out of reach of children. This reagent ships ground only, it cannot ship by air.\u003c\/p\u003e  \u003c\/div\u003e    \u003csection class=\"lmdpd1b-section\"\u003e    \u003ch2\u003eSpecifications\u003c\/h2\u003e    \u003cdiv class=\"lmdpd1b-spec-grid\"\u003e      \u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eManufacturer\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003eLaMotte\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eModel \/ MPN\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003eP-6741-H\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003ePST SKU\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003ePST-P6741H\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eReagent\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003eDPD 1B\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eTest Parameter\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003eFree Available Chlorine\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eFormat\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003eLiquid Reagent\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eBottle Size\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003e60 mL (2 fl oz)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eApprox. Tests Per Bottle\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003e288\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eSample Volume\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003e5 mL or 10 mL\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003ePairs With\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003eDPD 1A (P-6740-H)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eUsed With\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003eLaMotte chlorine comparators and colorimeters\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eApplications\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003ePool, Spa, Drinking Water, Food and Beverage, Cooling, Wastewater\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eShelf Life\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003e12 months from manufacture date\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eShipping Restriction\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003eGround only, no air shipment\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lmdpd1b-spec-row\"\u003e\n\u003cspan class=\"lmdpd1b-spec-key\"\u003eCountry of Origin\u003c\/span\u003e\u003cspan class=\"lmdpd1b-spec-val\"\u003eUSA\u003c\/span\u003e\n\u003c\/div\u003e    \u003c\/div\u003e  \u003c\/section\u003e    \u003csection class=\"lmdpd1b-section\"\u003e    \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e        \u003cdiv class=\"lmdpd1b-faq-card\"\u003e      \u003ch4\u003eWhat is the difference between DPD 1A and DPD 1B?\u003c\/h4\u003e      \u003cp\u003eBoth are part of the same free chlorine test. \u003cstrong\u003eDPD 1A (P-6740-H)\u003c\/strong\u003e contains the indicator that reacts with free chlorine to produce a pink color, and \u003cstrong\u003eDPD 1B (P-6741-H)\u003c\/strong\u003e is the buffer that holds the sample at the correct pH so the color develops accurately. You need both bottles for a free chlorine reading.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"lmdpd1b-faq-card\"\u003e      \u003ch4\u003eWhich LaMotte test kits use this reagent?\u003c\/h4\u003e      \u003cp\u003eP-6741-H is the refill bottle for any LaMotte kit that calls for liquid DPD reagents, including the \u003cstrong\u003eColorQ Pro series, Smart3 photometer kits, and the traditional octa-slide chlorine comparators\u003c\/strong\u003e. Check the reagent list inside your kit lid, if it lists DPD 1B, this is the bottle.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"lmdpd1b-faq-card\"\u003e      \u003ch4\u003eHow many tests do I get from one 60 mL bottle?\u003c\/h4\u003e      \u003cp\u003eAbout \u003cstrong\u003e288 tests\u003c\/strong\u003e at the standard dosing of 5 drops per sample. Heavier dosing for higher-range readings will shorten the bottle life, and partial drops or spillage will too. For most residential pool owners, one bottle covers a full season.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"lmdpd1b-faq-card\"\u003e      \u003ch4\u003eCan I use this on a spa, hot tub, or drinking water?\u003c\/h4\u003e      \u003cp\u003eYes. The DPD method is the same chemistry used for residential pools, commercial spas, drinking water, cooling towers, and food and beverage sanitation. The reading range is set by your meter or comparator, not the reagent.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"lmdpd1b-faq-card\"\u003e      \u003ch4\u003eHow should I store the reagent and how long does it last?\u003c\/h4\u003e      \u003cp\u003eStore the bottle \u003cstrong\u003etightly capped, upright, cool, dry, and out of direct sunlight\u003c\/strong\u003e. LaMotte guarantees a minimum 6 months of shelf life at shipment, with a typical shelf life of 12 months from manufacture. Replace the bottle if the liquid turns cloudy, discolored, or fails to develop color on a known chlorine standard.\u003c\/p\u003e    \u003c\/div\u003e      \u003c\/section\u003e    \u003csection class=\"lmdpd1b-cta\"\u003e    \u003ch2\u003eOrder LaMotte P-6741-H From PST\u003c\/h2\u003e    \u003cp\u003eAuthorized LaMotte dealer with fresh DPD 1B liquid reagent in stock and ready to ship ground.\u003c\/p\u003e    \u003cdiv class=\"lmdpd1b-perks\"\u003e      \u003cspan class=\"lmdpd1b-perk\"\u003eFree Shipping\u003c\/span\u003e\u003cspan class=\"lmdpd1b-perk\"\u003e30-Day Returns\u003c\/span\u003e\u003cspan class=\"lmdpd1b-perk\"\u003eFresh Stock Guarantee\u003c\/span\u003e\u003cspan class=\"lmdpd1b-perk\"\u003eAuthorized LaMotte Dealer\u003c\/span\u003e    \u003c\/div\u003e  \u003c\/section\u003e\n\u003c\/div\u003e","brand":"Lamotte","offers":[{"title":"Default Title","offer_id":44002158084161,"sku":"PST-P6741H","price":22.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/PST-P6741H.jpg?v=1780385370"}],"url":"https:\/\/www.pstpoolsupplies.com\/collections\/taylor-replacement-pool-reagents.oembed?page=3","provider":"PST Pool Supplies","version":"1.0","type":"link"}