{"product_id":"sw-21-166-swimables-pentair-whisperflo-intelliflo-diffuser-screws-071660","title":"Swimables SW-21-166 Pentair WhisperFlo IntelliFlo Diffuser Screws | 071660","description":"\u003cp data-start=\"284\" data-end=\"887\"\u003eThe Swimables SW-21-166 Diffuser Screw Kit is a direct replacement for Pentair part 071660, used in WhisperFlo and IntelliFlo pumps. This precision-engineered stainless steel screw (#4-40 × 1-1\/8″) secures the diffuser to the impeller housing, ensuring proper alignment, stable hydraulics, and reliable operation. Manufactured from corrosion-resistant stainless steel, it resists chemical damage, saltwater exposure, and wear from repeated service cycles. Each kit includes two screws, making it a practical solution for pump rebuilds, routine maintenance, or replacing stripped or corroded fasteners.\u003c\/p\u003e\n\u003ch3 data-start=\"889\" data-end=\"905\"\u003eHighlights\u003c\/h3\u003e\n\u003cul data-start=\"907\" data-end=\"1738\"\u003e\n\u003cli data-start=\"907\" data-end=\"1077\"\u003e\n\u003cp data-start=\"909\" data-end=\"1077\"\u003e\u003cstrong data-start=\"909\" data-end=\"940\"\u003eOEM-Compatible Replacement:\u003c\/strong\u003e Matches Pentair 071660 specifications, providing the correct size, thread, and length for seamless installation with no modifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1078\" data-end=\"1248\"\u003e\n\u003cp data-start=\"1080\" data-end=\"1248\"\u003e\u003cstrong data-start=\"1080\" data-end=\"1109\"\u003eMaintains Pump Alignment:\u003c\/strong\u003e Properly secures the diffuser to the impeller housing, preserving hydraulic efficiency and preventing vibration, noise, and uneven wear.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1249\" data-end=\"1414\"\u003e\n\u003cp data-start=\"1251\" data-end=\"1414\"\u003e\u003cstrong data-start=\"1251\" data-end=\"1285\"\u003eDurable Stainless Steel Build:\u003c\/strong\u003e Constructed from 18-8 stainless steel that resists rust, corrosion, and damage from harsh pool chemicals or saltwater systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1415\" data-end=\"1566\"\u003e\n\u003cp data-start=\"1417\" data-end=\"1566\"\u003e\u003cstrong data-start=\"1417\" data-end=\"1439\"\u003ePrecision Fitment:\u003c\/strong\u003e Manufactured to the exact #4-40 × 1-1\/8″ size, ensuring reliable engagement without bottoming out or stripping pump threads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1567\" data-end=\"1738\"\u003e\n\u003cp data-start=\"1569\" data-end=\"1738\"\u003e\u003cstrong data-start=\"1569\" data-end=\"1597\"\u003eConvenient Service Pack:\u003c\/strong\u003e Supplied with two screws and designed for easy installation using a 3\/32″ Allen hex key, simplifying pump rebuilds and field service work.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"600\" data-start=\"0\"\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eIncludes\u003c\/span\u003e\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=\"1812\" data-end=\"1833\"\u003eAdditional Info\u003c\/h3\u003e\n\u003cp data-start=\"1834\" data-end=\"2030\"\u003eThis guide explains the Swimables SW-21-166 diffuser screw, built to replace Pentair 071660. Learn which pumps it fits, when replacement is needed, and how to check local pricing and availability.\u003c\/p\u003e\n\u003ch2 data-start=\"2032\" data-end=\"2067\"\u003eCompatibility With Pump Models\u003c\/h2\u003e\n\u003cp data-start=\"2068\" data-end=\"2204\"\u003eThe SW-21-166 matches Pentair WhisperFlo and IntelliFlo pumps. Its #4-40 × 1-1\/8″ thread and length provide exact OEM replacement fit.\u003c\/p\u003e\n\u003ch4 data-start=\"2205\" data-end=\"2267\"\u003edoes sw 21 166 fit both whisperflo and intelliflo pumps\u003c\/h4\u003e\n\u003ch4 data-start=\"2268\" data-end=\"2329\"\u003ecross reference sw 21 166 to pentair oem 071660 screws\u003c\/h4\u003e\n\u003ch4 data-start=\"2330\" data-end=\"2393\"\u003ewill sw 21 166 screw work with all 3hp intelliflo models\u003c\/h4\u003e\n\u003ch4 data-start=\"2394\" data-end=\"2446\"\u003ehow to confirm my pump needs sw 21 166 screws\u003c\/h4\u003e\n\u003ch4 data-start=\"2447\" data-end=\"2498\"\u003edoes sw 21 166 fit older whisperflo versions\u003c\/h4\u003e\n\u003ch2 data-start=\"2500\" data-end=\"2539\"\u003eReplacement Timing and Maintenance\u003c\/h2\u003e\n\u003cp data-start=\"2540\" data-end=\"2682\"\u003eReplace diffuser screws when corroded, stripped, or missing. Using fresh SW-21-166 screws prevents misalignment and protects pump internals.\u003c\/p\u003e\n\u003ch4 data-start=\"2683\" data-end=\"2740\"\u003ewhen to replace diffuser screws with sw 21 166 kit\u003c\/h4\u003e\n\u003ch4 data-start=\"2741\" data-end=\"2800\"\u003esigns my pump diffuser screw is stripped or corroded\u003c\/h4\u003e\n\u003ch4 data-start=\"2801\" data-end=\"2862\"\u003ecan sw 21 166 be reused during multiple service cycles\u003c\/h4\u003e\n\u003ch4 data-start=\"2863\" data-end=\"2927\"\u003ewill stainless sw 21 166 resist saltwater pool conditions\u003c\/h4\u003e\n\u003ch4 data-start=\"2928\" data-end=\"2989\"\u003ehow often should diffuser screws be inspected in pumps\u003c\/h4\u003e\n\u003ch2 data-start=\"2991\" data-end=\"3024\"\u003eLocal Price and Stock Checks\u003c\/h2\u003e\n\u003cp data-start=\"3025\" data-end=\"3152\"\u003eCall ahead to confirm local stock of SW-21-166 screws. Shops may offer better pricing on multipacks or bundled hardware kits.\u003c\/p\u003e\n\u003ch4 data-start=\"3153\" data-end=\"3213\"\u003echeck local price of sw 21 166 diffuser screw near me\u003c\/h4\u003e\n\u003ch4 data-start=\"3214\" data-end=\"3276\"\u003ewhich local shop carries sw 21 166 for whisperflo pumps\u003c\/h4\u003e\n\u003ch4 data-start=\"3277\" data-end=\"3334\"\u003econfirm nearby store has sw 21 166 screws in stock\u003c\/h4\u003e\n\u003ch4 data-start=\"3335\" data-end=\"3399\"\u003ereserve sw 21 166 diffuser screw at local shop for pickup\u003c\/h4\u003e\n\u003ch4 data-start=\"3400\" data-end=\"3458\"\u003ecompare sw 21 166 screw cost to pentair oem locally\u003c\/h4\u003e","brand":"Swimables","offers":[{"title":"Default Title","offer_id":54366041571619,"sku":"SW-21-166","price":3.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0914\/0987\/5235\/files\/SwimablesSW-21-166PentairWhisperFloIntelliFloDiffuserScrews071660WholesalePoolMart.jpg?v=1761592023","url":"https:\/\/wholesalepoolmart.com\/products\/sw-21-166-swimables-pentair-whisperflo-intelliflo-diffuser-screws-071660","provider":"Wholesale Pool Mart","version":"1.0","type":"link"}