【Wide Compatibility for Pool & Spa Filters】：This clamp knob is fit for a variety of Sta-Rite and Pentair pool and spa filters, including Cristal-Flo T-BP Series models T-150BP-1, T-170BP-1, T-200BP-1, T-240BP-1, T-300BP, Waterford models JSAL-01, JSAL-15, JSAL-17, JSAL-20, 24200, 24201, 24203, Posi-Flo II models PTM50, PTM70, PTM100, and PTM135 Series. It also fits for IntelliPro variable speed and Max-E-Pro series pumps, ensuring compatibility with multiple systems 【Durable Plastic Construction】：Made from high-quality impact-resistant plastic, this clamp knob is built to withstand pool chemicals, weather conditions, and high-pressure usage. Its sturdy construction ensures longevity and reliability, reducing the need for frequent replacements 【Perfect Dimensions】: Designed to fit most pool filter band systems, this knob clamp measures 2.92 inches in length, 1.8 inches in width, and 0.65 inches in height, easy handling and installation, ensuring a secure fit without compromising strength 【Hassle-Free Installation】: Easily replace your old or worn-out sta-rite clamp knob in seconds! This replacement clamp knob is designed for quick, tool-free installation—simply twist and tighten for a secure fit. Perfect for DIY pool maintenance 【Enhances Pool Performance & Equipment Lifespan】：By keeping your pool filter clamp securely fastened, this pool filter knob helps maintain suction power, prevents leaks, and protects essential filtration components. It ensures long-term efficiency and reduces maintenance costs, making it an essential part of your pool maintenance routine This clamp knob is compatible with Sta-Rite Cristal-Flo T-BP Series High-Rate Pool and Spa Sand Filter model T-150BP-1,T-170BP-1, T-200BP-1, T-240BP-1, T-300BP, Sta-Rite Waterford pool and spa sand filter system model JSAL-01, JSAL-15, JSAL-17, JSAL-20, 24200 24201, 24203.

Compatible with Sta-Rite Posi-Flo II pool and spa cartridge filters model PTM50, PTM70, PTM100 and compatible with PTM135 Series as well as fits Sta-Rite Separation Tank Assembly pool and spa filters.

Also this clamp knob fit for Sta-Rite IntelliPro variable speed pool in ground pump and Sta-Rite Max-E-Pro series pool in ground pump. Fit for Sta-Rite Max E-Glass/Dura-Glass series pool in ground pump and Sta-Rite Max-E-/Dura- series pool in ground pump.