This replacement pump lid with integrated O-ring (model 357151 and 350013) is designed specifically for Pentair Whisperflo WFE, XF, Intelliflo VF, VS 3050, SVRS, and compatible clear pool pump cover assemblies.

Constructed from durable thermoplastic, the lid provides a precise fit that maintains a secure seal under normal operating pressures, helping to prevent air ingress and water leaks during circulation cycles. The included O-ring (350013) is molded from flexible, chlorine-resistant rubber that retains its shape over extended use, reducing the risk of compression set and frequent replacements. The lid features an evenly distributed clamping surface that aligns with the pump housing threads, allowing for hand-tightening without excessive force. Its clear or transparent variant enables visual inspection of the pump basket and water flow without removing the cover, which simplifies routine maintenance checks. The material exhibits good impact resistance and UV stability, making it suitable for outdoor pool environments exposed to sunlight and chemical treatments. The O-ring groove is precisely machined to prevent slippage, ensuring consistent compression when the lid is fastened. Installation is straightforward: remove the existing lid and O-ring, clean the sealing surfaces, lubricate the new O-ring with silicone-based grease, and screw the lid into place until snug. No specialized tools are required. This replacement part is engineered to match OEM specifications, offering a reliable fit for high-performance pool pumps and variable-speed spa pump assemblies. The lid’s rigidity supports the weight of the pump lid handle and any attached debris basket, while the O-ring maintains a leak-proof barrier across a wide temperature range. In terms of value, this kit provides a cost-effective alternative to buying separate lid and O-ring components. At a very affordable price, it delivers dependable sealing performance that can extend the operational life of existing pool pump systems. Pool owners with older Pentair pumps will find this replacement especially useful when original parts are no longer readily available or when minor wear causes air suction issues. The combination of robust construction and precise sealing helps maintain pump efficiency and reduce energy loss associated with air leaks. For pool service professionals and DIY homeowners alike, this lid and O-ring set represents a practical solution for restoring pump cover integrity without replacing the entire pump assembly. Its compatibility covers multiple popular Pentair pump models, making it a versatile spare part to keep on hand. The straightforward design and modest pricing position it as a sensible choice for routine pump maintenance or emergency repairs.