The Pentair Flange 4" with Gasket & S/S Hardware (357262) is the OEM optional accessory flange kit for Pentair EQ Series, CSP/CCSP Series, CSPH/CCSPH Series, 5CSP/5CCSP Series commercial pumps, and Aurora 3800 Series end suction pumps. This kit provides a complete 4-inch thermoplastic PVC socket-style flange connection with all required hardware included. ⚠️ IMPORTANT: KIT LISTING — MULTIPLE COMPONENTS INCLUDED This listing is a complete kit — not a single flange. The kit includes the 4-inch flange, gasket, and stainless steel hardware as a matched set. The flange assembly kit provides a socket-style PVC connection point at the pump's 4-inch port, allowing the pump to be plumbed into a fixed piping system using standard thermoplastic PVC fittings. The included gasket ensures a leak-free seal at the flange face, and the stainless steel hardware resists corrosion in wet commercial equipment environments. On CSP/CCSP and CSPH/CCSPH Series pumps, this kit is designed for the 6-inch x 4-inch ANSI flange port. Specifications Pentair Part Number 357262 Part Name Flange 4" with Gasket & S/S Hardware Connection Style Thermoplastic PVC, socket style Connection Size 4" Hardware Material Stainless steel Quantity Included Kit (flange, gasket, and stainless steel hardware) Fits Into Brand Equipment Line Model / Part Number Notes Pentair EQ Series Commercial Pump without Strainer 340608 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump without Strainer 340609 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump without Strainer 340610 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump without Strainer 340611 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump without Strainer 340148 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump without Strainer 340149 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump without Strainer 340150 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump without Strainer 340151 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump with Strainer 340030 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump with Strainer 340032 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump with Strainer 340238 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump with Strainer 340031 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump with Strainer 340033 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump with Strainer 340034 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump with Strainer 340035 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump with Strainer 340604 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump with Strainer 340605 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump with Strainer 340606 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair EQ Series Commercial Pump with Strainer 340607 4 in. thermoplastic PVC socket style. Verify fitment before ordering. Pentair Aurora 3800 Series End Suction Pump 3801 Thermoplastic PVC socket style. Verify fitment before ordering. ...and additional compatible models. Verify your model number with your equipment manual before ordering. Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering. Pro Tip Confirm your pump's port size and connection style before ordering — Pentair EQ Series and CSP/CCSP Series pumps may have different flange port configurations depending on the specific model. On CSP/CCSP and CSPH/CCSPH Series pumps, this kit is designed specifically for the 6-inch x 4-inch ANSI flange port. Cross-reference your pump's model number against the compatibility table above and verify against your equipment manual before adding to cart.