{"product_id":"sw-21-166-swimables-pentair-whisperflo-intelliflo-diffuser-screws-071660","title":"SW-21-166 | Swimables Pentair WhisperFlo IntelliFlo Diffuser Screws | 071660","description":"\u003cp data-end=\"600\" data-start=\"0\"\u003eThe Swimables \u003cstrong data-end=\"53\" data-start=\"40\"\u003eSW-21-166\u003c\/strong\u003e is a direct replacement diffuser screw compatible with Pentair WhisperFlo and IntelliFlo pumps—corresponding to part number \u003cstrong data-end=\"188\" data-start=\"178\"\u003e071660\u003c\/strong\u003e. This precision screw (#4-40 × 1-1\/8″) secures the diffuser to the impeller housing, ensuring proper pump hydraulics and preventing vibration or misalignment. Manufactured from high-quality stainless steel, it resists corrosion, chemical exposure, and wear over repeated service cycles. Ideal for pump rebuilds or maintenance, it helps restore stable pump operation and extends the life of your pump components.\u003c\/p\u003e\n\u003ch3 data-end=\"623\" data-start=\"607\"\u003eHighlights\u003c\/h3\u003e\n\u003cul data-end=\"1569\" data-start=\"625\"\u003e\n\u003cli data-end=\"832\" data-start=\"625\"\u003e\n\u003cp data-end=\"832\" data-start=\"627\"\u003e\u003cstrong data-end=\"663\" data-start=\"627\"\u003eExact OEM Replacement for 071660\u003c\/strong\u003e: Matches Pentair’s original diffuser screw specifications (size, thread, length), making it a drop-in swap without modification. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1018\" data-start=\"833\"\u003e\n\u003cp data-end=\"1018\" data-start=\"835\"\u003e\u003cstrong data-end=\"871\" data-start=\"835\"\u003eSecures Diffuser for Proper Flow\u003c\/strong\u003e: Maintains correct positioning between the diffuser and impeller, supporting pump efficiency and preventing wobble that can cause noise or wear.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1213\" data-start=\"1019\"\u003e\n\u003cp data-end=\"1213\" data-start=\"1021\"\u003e\u003cstrong data-end=\"1053\" data-start=\"1021\"\u003eStainless Steel Construction\u003c\/strong\u003e: Built from corrosion-resistant 18-8 stainless steel to withstand harsh pool chemistry, salt, and repeated maintenance.\u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1377\" data-start=\"1214\"\u003e\n\u003cp data-end=\"1377\" data-start=\"1216\"\u003e\u003cstrong data-end=\"1245\" data-start=\"1216\"\u003eThread \u0026amp; Length Precision\u003c\/strong\u003e: Sized at #4-40 × 1-1\/8″, ensuring accurate fit without bottoming out or stripping threads.\u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1569\" data-start=\"1378\"\u003e\n\u003cp data-end=\"1569\" data-start=\"1380\"\u003e\u003cstrong data-end=\"1408\" data-start=\"1380\"\u003eEasy Service Replacement\u003c\/strong\u003e: Designed for simple removal and installation using a 3\/32″ Allen (hex) key—ideal for pump rebuilds or in-field repairs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIncludes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e(2)\u003c\/strong\u003e Diffuser Screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePentair WhisperFlo Pump\u003c\/li\u003e\n\u003cli\u003ePentair IntelliFlo Pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"41\" data-end=\"62\"\u003eAdditional Info\u003c\/h3\u003e\n\u003cp data-start=\"63\" data-end=\"254\"\u003eThis section covers the Swimables SW-21-166 diffuser screw, a direct replacement for Pentair part 071660. Learn how it secures the diffuser, when to replace it, and where to find it in store.\u003c\/p\u003e\n\u003ch2 data-start=\"256\" data-end=\"300\"\u003eInstalling the SW-21-166 Diffuser Screw\u003c\/h2\u003e\n\u003cp data-start=\"301\" data-end=\"428\"\u003eThe stainless steel screw locks the diffuser to the impeller housing. Use a 3\/32″ Allen key to tighten without over-torquing.\u003c\/p\u003e\n\u003ch4 data-start=\"429\" data-end=\"499\"\u003ehow to install swimables sw 21 166 diffuser screw in whisperflo\u003c\/h4\u003e\n\u003ch4 data-start=\"500\" data-end=\"559\"\u003edoes sw 21 166 match pentair 071660 screw dimensions\u003c\/h4\u003e\n\u003ch4 data-start=\"560\" data-end=\"627\"\u003ewhich tool fits sw 21 166 diffuser screw during pump rebuild\u003c\/h4\u003e\n\u003ch4 data-start=\"628\" data-end=\"696\"\u003ein store staff can show correct placement of sw 21 166 screws\u003c\/h4\u003e\n\u003ch4 data-start=\"697\" data-end=\"756\"\u003edo i need thread sealant with sw 21 166 installation\u003c\/h4\u003e\n\u003ch2 data-start=\"758\" data-end=\"790\"\u003eTroubleshooting Pump Issues\u003c\/h2\u003e\n\u003cp data-start=\"791\" data-end=\"942\"\u003eLoose or missing screws can cause vibration, noise, or misalignment. Replacing them with SW-21-166 restores pump stability and hydraulic performance.\u003c\/p\u003e\n\u003ch4 data-start=\"943\" data-end=\"1008\"\u003epump vibrating does sw 21 166 diffuser screw fix alignment\u003c\/h4\u003e\n\u003ch4 data-start=\"1009\" data-end=\"1080\"\u003ehow to know if missing screw is causing noise in intelliflo pump\u003c\/h4\u003e\n\u003ch4 data-start=\"1081\" data-end=\"1145\"\u003ewill sw 21 166 stop diffuser from wobbling under pressure\u003c\/h4\u003e\n\u003ch4 data-start=\"1146\" data-end=\"1210\"\u003edoes sw 21 166 prevent wear between impeller and diffuser\u003c\/h4\u003e\n\u003ch4 data-start=\"1211\" data-end=\"1268\"\u003ehow to check if stripped screw threads need repair\u003c\/h4\u003e\n\u003ch2 data-start=\"1270\" data-end=\"1300\"\u003eBuying SW-21-166 In Store\u003c\/h2\u003e\n\u003cp data-start=\"1301\" data-end=\"1439\"\u003eBring your old screw or pump model for quick matching. Store staff can confirm compatibility and supply complete rebuild kits if needed.\u003c\/p\u003e\n\u003ch4 data-start=\"1440\" data-end=\"1510\"\u003ebuy swimables sw 21 166 diffuser screw in store near chatsworth\u003c\/h4\u003e\n\u003ch4 data-start=\"1511\" data-end=\"1580\"\u003eavailable locally sw 21 166 screw for pentair whisperflo pumps\u003c\/h4\u003e\n\u003ch4 data-start=\"1581\" data-end=\"1642\"\u003econfirm in store stock before weekend pump maintenance\u003c\/h4\u003e\n\u003ch4 data-start=\"1643\" data-end=\"1696\"\u003ewalk in with old screw to compare to sw 21 166\u003c\/h4\u003e\n\u003ch4 data-start=\"1697\" data-end=\"1757\"\u003eswap unopened sw 21 166 screws in store if wrong size\u003c\/h4\u003e","brand":"Swimables","offers":[{"title":"Default Title","offer_id":50735817359648,"sku":"SW-21-166","price":3.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/3326\/9536\/files\/SW-21-166SwimablesPentairWhisperFloIntelliFloDiffuserScrews071660DiscountPoolMart.jpg?v=1760391441","url":"https:\/\/discountpoolmart.com\/products\/sw-21-166-swimables-pentair-whisperflo-intelliflo-diffuser-screws-071660","provider":"Discount Pool Mart","version":"1.0","type":"link"}