{"product_id":"pentair-523041-bioshield-quartz-sleeve-50-75-for-model-522637","title":"Pentair Bioshield Quartz Sleeve 50.75 in. for Model 522637, 523041","description":"\u003cp\u003eThe Pentair 523041 is the 50.75 in. quartz sleeve for the Bioshield UV system, model 522637. It is the genuine Pentair part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the sleeve does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe UV lamp sits inside the quartz sleeve, and the sleeve is what keeps the lamp dry while pool water flows around it. Quartz is used because it lets the lamp output through. Anything on the sleeve, scale, film, even a fingerprint, sits directly in that light path.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the right length\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePentair builds the Bioshield in more than one size and each takes its own sleeve. This one is 50.75 in. for the 522637. The 522635 takes a 22.25 in. sleeve and the 522636 takes a 38.25 in. sleeve, so check the model number on the unit before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSleeve and lamp\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe sleeve and the lamp are separate parts and wear on different schedules. A sleeve is changed when it cracks or when cleaning no longer clears it; the lamp is changed on hours. Model 522637 uses the 120 watt Bioshield UV lamp. Handle the new sleeve by the ends and wipe it clean before it goes in.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48625735696596,"sku":"PAC-451-3021","price":184.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_4af31777-84de-4486-a14e-c2a6897b1423.png?v=1788690317","url":"https:\/\/www.activepoolsupply.com\/products\/pentair-523041-bioshield-quartz-sleeve-50-75-for-model-522637","provider":"Active Pool Supply","version":"1.0","type":"link"}