Hayward SP1480BLK 1-1/2-Inch MIP Black Self-Aligning Double Male End Union Replacement for select Hayward DE and Cartridge Filters Self-aligning double male end union Fits Hayward Perflex extended-cycle pool and spa DE filter models EC301500, EC4075, EC4075UL Also fits Hayward Star-Clear C-series and XStream pool and spa cartridge filter Available in black color Measures 1-1/2-inch MIP size