Check Valves

161 products

  • -54% Off
    Check Valve Assembly, WW Above Ground In-Line Chlorinator

    Check Valve Assembly, WW Above Ground In-Line Chlorinator

    Check Valve Assembly, WW Above Ground In-Line Chlorinator

    Waterway Plastics

    600-1180
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110501691457","discontinued":false,"mpn":"600-1180","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months"}
    $18.30
    $40.10 $18.30
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  • -52% Off
    Injection Check Valve, Stenner, Series 45/85/100/170, 3/8"

    Injection Check Valve, Stenner, Series 45/85/100/170, 3/8"

    Injection Check Valve, Stenner, Series 45/85/100/170, 3/8"

    Stenner Pump Company

    UCINJ38
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110500347969","discontinued":false,"mpn":"UCINJ38","saleprice":"0","warehouselocations":"Bloomfield, CT","warranty":"12 Months"}
    $31.80
    $67.10 $31.80
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  • -55% Off
    Check Valve, Pent.Rainbow Auto.Feeder 300, 302, 300-19/29, 1/4

    Check Valve, Pent.Rainbow Auto.Feeder 300, 302, 300-19/29, 1/4

    Check Valve, Pent.Rainbow Auto.Feeder 300, 302, 300-19/29, 1/4

    Pentair

    R172323
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110496251969","discontinued":false,"mpn":"R172323","prop65":"This product can expose you to chemicals which is known to the State of California to cause cancer and reproductive harm.","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ | Newnan, GA | Bloomfield, CT | Murray, UT","warranty":"12 Months"}
    $28.10
    $62.70 $28.10
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  • -58% Off
    Check Valve, Pentair Rainbow Auto.Feeder 300, 302, 300-19/29

    Check Valve, Pentair Rainbow Auto.Feeder 300, 302, 300-19/29

    Check Valve, Pentair Rainbow Auto.Feeder 300, 302, 300-19/29

    Pentair

    R172020
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110496022593","mpn":"R172020","prop65":"This product can expose you to chemicals which is known to the State of California to cause cancer and reproductive harm.","saleprice":"0","warehouselocations":"Newnan, GA | Bloomfield, CT","warranty":"12 Months"}
    $13.80
    $33.40 $13.80
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  • -54% Off
    Check Valve, Pentair Rainbow Automatic Feeder 320, 1/2

    Check Valve, Pentair Rainbow Automatic Feeder 320, 1/2

    Check Valve, Pentair Rainbow Automatic Feeder 320, 1/2

    Pentair

    R172248Z
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110495596609","mpn":"R172248Z","prop65":"This product can expose you to chemicals which is known to the State of California to cause cancer and reproductive harm.","warehouselocations":"Newnan, GA | Murray, UT","warranty":"12 Months"}
    $19.90
    $43.30 $19.90
  • -48% Off
    Check Valve, Hayward C250BR/500BR, 3/4"

    Check Valve, Hayward C250BR/500BR, 3/4"

    Check Valve, Hayward C250BR/500BR, 3/4"

    Hayward

    CX500CV
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110493401153","discontinued":false,"mpn":"CX500CV","saleprice":"0","warehouselocations":"Bloomfield, CT","warranty":"12 Months"}
    $65.70
    $126.40 $65.70
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  • -56% Off
    R172061Z Check Valve/Elbow Combo, Pent. Auto.Feeder 300, 302, 300-19/29

    R172061Z Check Valve/Elbow Combo, Pent. Auto.Feeder 300, 302, 300-19/29

    R172061Z Check Valve/Elbow Combo, Pent. Auto.Feeder 300, 302, 300-19/29

    Pentair

    R172061Z
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"mpn":"R172061Z","saleprice":"0","warehouselocations":"Newnan, GA | Bloomfield, CT","warranty":"12 Months"}
    $15.20
    $35.30 $15.20
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  • -51% Off
    Check Valve, Spring, Return Line, 1-1/2"mpt, Light Gray, Spa

    Check Valve, Spring, Return Line, 1-1/2"mpt, Light Gray, Spa

    Check Valve, Spring, Return Line, 1-1/2"mpt, Light Gray, Spa

    Val-Pak

    V20-342
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110353711169","discontinued":false,"mpn":"V20-342","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months"}
    $42.90
    $88.70 $42.90
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  • -51% Off
    Check Valve, Spring, Return Line, 1-1/2"mpt, Dark Gray, Spa

    Check Valve, Spring, Return Line, 1-1/2"mpt, Dark Gray, Spa

    Check Valve, Spring, Return Line, 1-1/2"mpt, Dark Gray, Spa

    Val-Pak

    V20-341
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110353678401","discontinued":false,"mpn":"V20-341","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months"}
    $48.60
    $101.20 $48.60
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  • -47% Off
    Check Valve, Magic Plastics Smart Check, 3"s, 1/2 lb, Water

    Check Valve, Magic Plastics Smart Check, 3"s, 1/2 lb, Water

    Check Valve, Magic Plastics Smart Check, 3"s, 1/2 lb, Water

    Magic Plastics

    0821-30C
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110351876161","discontinued":false,"mpn":"0821-30C","prop65":"This product can expose you to chemicals including Vinyl Chloride, which is known to the State of California to cause cancer.","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months"}
    $68.60
    $130.30 $68.60
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  • -49% Off
    Check Valve, Magic Plastics Smart Check, 2"Union, 2lb. Clear

    Check Valve, Magic Plastics Smart Check, 2"Union, 2lb. Clear

    Check Valve, Magic Plastics Smart Check, 2"Union, 2lb. Clear

    Magic Plastics

    0823-20MC
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110351843393","discontinued":false,"mpn":"0823-20MC","prop65":"This product can expose you to chemicals including Vinyl Chloride, which is known to the State of California to cause cancer.","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months"}
    $53.50
    $106.10 $53.50
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  • -50% Off
    Check Valve, Magic Plastics Smart Check, 2" Slip, 2lb. Clear

    Check Valve, Magic Plastics Smart Check, 2" Slip, 2lb. Clear

    Check Valve, Magic Plastics Smart Check, 2" Slip, 2lb. Clear

    Magic Plastics

    0821-20MC
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110351777857","discontinued":false,"mpn":"0821-20MC","prop65":"This product can expose you to chemicals including Vinyl Chloride, which is known to the State of California to cause cancer.","saleprice":"0","warehouselocations":"Memphis, TN","warranty":"12 Months"}
    $43.70
    $89.10 $43.70
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  • -51% Off
    Check Valve, MagicPlasticsSmartCheck, 2"s/2-1/2"spg, 1/2lb, Wtr

    Check Valve, MagicPlasticsSmartCheck, 2"s/2-1/2"spg, 1/2lb, Wtr

    Check Valve, MagicPlasticsSmartCheck, 2"s/2-1/2"spg, 1/2lb, Wtr

    Magic Plastics

    0821-20C
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110351745089","discontinued":false,"mpn":"0821-20C","prop65":"This product can expose you to chemicals including Vinyl Chloride, which is known to the State of California to cause cancer.","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ | Corona, CA","warranty":"12 Months"}
    $33.50
    $69.30 $33.50
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  • -54% Off
    Check Valve, Magic Plastics Smart Check, 1-1/2" Slip, 1/2 lb

    Check Valve, Magic Plastics Smart Check, 1-1/2" Slip, 1/2 lb

    Check Valve, Magic Plastics Smart Check, 1-1/2" Slip, 1/2 lb

    Magic Plastics

    0821-15C
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110351679553","discontinued":false,"mpn":"0821-15C","prop65":"This product can expose you to chemicals including Vinyl Chloride, which is known to the State of California to cause cancer.","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ | Corona, CA","warranty":"12 Months"}
    $30.50
    $66.70 $30.50
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  • -54% Off
    Check Valve, Magic Plastics Smart Check, 1"s, 1/2 lb, Water

    Check Valve, Magic Plastics Smart Check, 1"s, 1/2 lb, Water

    Check Valve, Magic Plastics Smart Check, 1"s, 1/2 lb, Water

    Magic Plastics

    0821-10C
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110351614017","mpn":"0821-10C","prop65":"This product can expose you to chemicals including Vinyl Chloride, which is known to the State of California to cause cancer.","saleprice":"0","warehouselocations":"Memphis, TN | Corona, CA","warranty":"12 Months"}
    $22.20
    $49.30 $22.20
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  • -50% Off
    Check Valve, Flo Control 1500, 2"s, Swing, Water

    Check Valve, Flo Control 1500, 2"s, Swing, Water

    Check Valve, Flo Control 1500, 2"s, Swing, Water

    Flo Control

    1520-20
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110350565441","discontinued":false,"mpn":"1520-20","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months"}
    $61.80
    $123.70 $61.80
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Explore our comprehensive selection of Check Valves – your essential solution for preventing backflow and ensuring reliable, one-way flow in any piping system. Often called Non-Return Valves, these critical components automatically safeguard your pumps, filters, and other valuable equipment from damage caused by reverse flow or pressure surges. Our collection features a wide range of types (swing, lift, wafer, spring-loaded) and materials (stainless steel, brass, PVC) to meet diverse application needs, from industrial processes to residential plumbing. Shop now to find durable, high-quality check valves that enhance system efficiency and provide long-lasting performance.