O-Ring - square cut. Schroeder HP Filter

Square Ring - Schroeder H/P Filter - Use With 735021 Main O-Ring on Schroeder Filters

We changed current production from the old style, Single O-ring H/P filter assembly to the Schroeder H/P, Dual O-ring Filter assembly in December of 2022.

The Schroeder will still accept the standard H/P Filter element(735003)