Pool UV System Parts

Maintain your pool or spa UV sanitizer with UV system replacement parts from Delta Ultraviolet, Del Ozone, Balboa Water Group, and Jacuzzi. PST Pool Supplies stocks the consumable and wear components used in residential and commercial pool UV systems — UV lamps, quartz tubes, ballasts, gaskets, O-rings, and housing hardware — starting from $12.

The primary consumable in any UV sanitation system is the UV lamp: germicidal UV lamps degrade in output at the 254nm wavelength (the germicidal wavelength) well before they stop illuminating — most manufacturers rate their lamps for 9,000–12,000 hours of operation, after which germicidal output drops below the level needed for reliable pathogen destruction. The Delta UV high-output UV bulb (for EP 10-EA-3H/EA-4H-10-E/D-10/46 models) and the Del Ozone AOP UV lamp kit are direct replacement lamps for their respective systems. The BWG Wavetec/Wavezone 7W replacement lamp kit and complete BWG Wavetec254 sanitation system (230V, 7W, 3/4" ports) cover Balboa Water Group UV applications. The Jacuzzi/Sundance ClearRay UV quartz tube is the fused quartz sleeve surrounding the UV lamp in ClearRay-equipped Jacuzzi and Sundance spas — the quartz tube must be optically clear for UV to pass through effectively; scale or mineral deposits on the tube surface block UV transmission and require tube replacement or careful cleaning. Delta UV quartz tubes (Model E-5 and E-40) serve the equivalent function in Delta UV commercial systems. Delta UV ballasts (Multi-Volt, E/ES/EP 20 & 40 models) are the electronic driver circuits for UV lamps — ballasts fail less commonly than lamps but are the next component to replace if a lamp swap doesn't restore system function. Sealing components include the Delta UV compression gasket (quartz tube), Viton O-ring (E/ES series lamps), and Acorn Nut Black (EP series) — these maintain the watertight housing seal around the UV lamp/quartz tube assembly. For complete UV sanitizer systems, see our pool sanitation systems collection.

Annual UV lamp replacement is the single most important UV system maintenance task. Because lamp degradation is invisible to the eye — the lamp appears lit but may be producing only 50–60% of its rated UV output — many pool owners unknowingly operate a UV system that is no longer providing adequate sanitation. Set a recurring annual reminder to replace the UV lamp at the start of each swim season, or track lamp hours if your controller displays them. When replacing quartz tubes, handle with lint-free gloves — fingerprints and skin oils on quartz absorb UV and create local hot spots that can crack the tube during operation. Always shut off the UV system and allow the lamp to cool for 10 minutes before servicing.

Shop pool UV system parts at PST Pool Supplies and keep your UV sanitizer delivering full germicidal performance.