HFA91025 26 GPM Tank Top Return Filter, with 10 micron element. Aluminum Head, black plastic lower housing. 1" npt port, 25 PSI bypass, 1/8 npt port for gauge, Includes rubber gasket & 5/16 NC cap screws
Tank top hole required 3.5". Head diiameter max 5.3", height 9" over all, 3.06" above tank
Use U9L3FE 10 micron or U9L6FE 25 micron replacement element