{"product_id":"071136z-pentair-purex-whisperflo-clamp-knob","title":"Pentair Clamp Knob for Purex \u0026 WhisperFlo Pumps - Part 071136Z","description":"\u003cp\u003eThe Pentair 071136Z clamp knob is a genuine factory replacement designed to fasten filter and pump lids on Pentair Purex SM\/SMBW 2000 and 4000 series filters as well as WhisperFlo pumps manufactured before 1998. This knob applies even compression to the lid, holding the gasket firmly in place to create a pressure-tight seal that guards against air leaks and water loss. Crafted from tough, pool-rated materials, it withstands constant exposure to sanitizing chemicals, direct sunlight, and the mechanical stresses of repeated tightening cycles. For anyone maintaining legacy Pentair equipment, this knob is a small but essential part that keeps the entire filtration or pumping system running at full capacity.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eKey Benefits\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngineered for Pre-1998 Pentair Equipment:\u003c\/strong\u003e Precision-sized for legacy WhisperFlo pumps and Purex SM\/SMBW filter lines, covering both the 2000 and 4000 series platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocks Down Lids Tight:\u003c\/strong\u003e Provides the clamping force needed to seat filter and pump covers securely, eliminating vacuum leaks and preserving internal system pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEven Gasket Compression:\u003c\/strong\u003e Distributes pressure uniformly across the lid seal, preventing uneven wear and ensuring a consistent, gap-free fit around the entire perimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResists Chemical and UV Damage:\u003c\/strong\u003e Produced from robust compounds that tolerate chlorine, bromine, salt, ultraviolet light, and repeated mechanical use without cracking or stripping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeeps Legacy Systems Running Strong:\u003c\/strong\u003e Restores original clamping performance on older Pentair units, allowing continued safe operation and extending the useful life of proven equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eWhat's Included\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003ePentair 071136Z Knob\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eCompatibility\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003ePentair Purex SM 2000 Series Filters\u003c\/li\u003e\n\u003cli\u003ePentair Purex SMBW 2000 Series Filters\u003c\/li\u003e\n\u003cli\u003ePentair Purex SM 4000 Series Filters\u003c\/li\u003e\n\u003cli\u003ePentair Purex SMBW 4000 Series Filters\u003c\/li\u003e\n\u003cli\u003ePentair WhisperFlo Pumps\u003c\/li\u003e\n\u003cli\u003ePentair Nautilus Plus Filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eSpecifications\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Pentair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 071136Z\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eSEO Tags\u003c\/h1\u003e\n\u003cp\u003epentair 071136z\u003cbr\u003e071136Z\u003cbr\u003e071136z pentair purex whisperflo clamp\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":47546719437051,"sku":"071136Z","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/9021\/2859\/files\/images_48fde579-f26f-4255-9c0b-d544081763a3.jpg?v=1769895087","url":"https:\/\/poolst.com\/products\/071136z-pentair-purex-whisperflo-clamp-knob","provider":"Pool St","version":"1.0","type":"link"}