Hayward Platform Base with Screws – Low Profile for StarClear Cartridge Filter and Perflex DE Filter | EC1161PAK

The Hayward Platform Base with Screws – Low Profile (EC1161PAK) is the OEM replacement filter base for the StarClear Cartridge Filter W3C500 and the Perflex Extended-Cycle DE Filter W3EC40AC. This low-profile thermoplastic platform base mounts the filter tank to a stable footing and includes the mounting screws required for reassembly. Replacing a cracked, broken, or missing base restores proper filter stability and ensures the tank sits level and secure during operation. Specifications Hayward Part Number EC1161PAK Profile Low Profile Includes Platform base and mounting screws UPC 610377025447 Fits Into Brand Equipment Line Model / Part Number Notes Hayward StarClear Cartridge Filter 50 Sq.Ft. (Open Line) W3C500 Position v2 #13 Hayward Perflex Extended-Cycle DE Filter 20 Sq.Ft. with Clamp (Open Line) W3EC40AC Position v6 #31 Compatibility is based on Hayward 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. Poolaroo Pro Tip Before installing the new base, inspect the mounting surface for any debris or damage that could prevent the base from sitting flush. Hand-tighten the included screws first to confirm alignment, then torque evenly to avoid stress-cracking the thermoplastic housing.