{"product_id":"pentairwaterpoolandspainc_39006600","title":"Pentair Diffuser Gasket | Ultra-Flow Pool \u0026 Spa Pump | 39006600","description":"\u003ch3\u003eOEM Diffuser Gasket for the Pentair Ultra-Flow Pump\u003c\/h3\u003e\n\u003cp\u003eThe Pentair 39006600 is the OEM replacement diffuser gasket for the Ultra-Flow pool and spa pump. If your pump is losing prime, producing reduced flow, or showing signs of air ingestion behind the diffuser, this gasket is the correct service part to restore a proper seal between the diffuser and pump housing.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It Does\u003c\/h3\u003e\n\u003cp\u003eThe diffuser gasket seals the mating surface between the pump diffuser and the volute housing. A failed or compressed gasket allows air to bypass the seal, disrupting hydraulic efficiency and causing the pump to lose prime. Replacing this gasket at the first sign of seal failure prevents secondary damage to the impeller and motor.\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;\"\u003e39006600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eDiffuser Gasket\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\u003eFits Equipment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003ePentair Ultra-Flow Pool and Spa Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003eWhen replacing the diffuser gasket, inspect the diffuser itself for cracks or warping — a damaged diffuser face will prevent even a new gasket from sealing correctly. Match the part number 39006600 to the number molded or stamped on your original gasket before ordering to confirm fitment. Verify your specific pump model against your equipment manual, as compatibility data for this part is limited in available documentation.\u003c\/p\u003e\n\n\u003c!-- wft:processed:manual:2026-04-04 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53932870598931,"sku":"39006600","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/pentair-diffuser-gasket-ultra-flow-pool-spa-pump-39006600.webp?v=1776437041","url":"https:\/\/poolaroo.com\/products\/pentairwaterpoolandspainc_39006600","provider":"Poolaroo","version":"1.0","type":"link"}