{"product_id":"pentairwaterpoolandspainc_523039","title":"Pentair Quartz Sleeve 22-1\/4\" for BioShield UV System | 523039","description":"\u003ch3\u003eOEM Replacement Quartz Sleeve for the Pentair BioShield UV System\u003c\/h3\u003e\n\u003cp\u003eThe Pentair Quartz Sleeve 22-1\/4\" (523039) is the OEM replacement quartz sleeve for the BioShield UV System 50 Watt (Model 522635). When this sleeve clouds, cracks, or accumulates mineral scale, UV transmittance drops and sanitizer output falls — this is the direct replacement to restore full system performance.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It Does\u003c\/h3\u003e\n\u003cp\u003eThe quartz sleeve surrounds the UV lamp inside the BioShield chamber, allowing UV-C light to pass through to the water flow path while isolating the lamp from direct water contact. Quartz is used specifically because of its high UV transmittance — standard glass blocks the wavelengths required for effective sanitization. A fouled or damaged sleeve reduces UV output at the lamp surface, compromising the system's ability to inactivate pathogens. Replacing the sleeve on schedule restores the optical clarity the system depends on.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePentair Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e523039\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePart Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eQuartz Sleeve 22-1\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eQuantity Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e1 (Each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFits Into\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eEquipment Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eModel \/ Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eBioShield UV System 50 Watt — BioShield Series\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e522635\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eQuartz Sleeve 22-1\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cem\u003eCompatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003eInspect the quartz sleeve whenever you service the UV lamp. Even if the sleeve appears intact, mineral scale and biofilm accumulation reduce UV transmittance significantly over time — a visually clear sleeve can still be underperforming. Clean the sleeve with a dilute acid solution per the BioShield installation manual before reinstalling, and replace it if any cloudiness, etching, or cracking is present. Replacing the lamp and sleeve together at the same service interval is the most efficient approach.\u003c\/p\u003e\n\n\u003c!-- wft:processed:manual:2026-04-06 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53962258612499,"sku":"523039","price":92.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/pentair-quartz-sleeve-22-1-4-bioshield-uv-system-523039-2.webp?v=1790883011","url":"https:\/\/poolaroo.com\/products\/pentairwaterpoolandspainc_523039","provider":"Poolaroo","version":"1.0","type":"link"}