This part is a Salt/Ozone Resistant PS-3865 which is the upgraded Better version Viton Carbon Graphite version of the PS-1000 Seal. This Seal is used Primarily in Waterway Brand Wet Ends.
This Seal is a PS-3867 which is the Better - Viton Carbon Graphite version of the PS-200 Seal used Primarily in Aqua-Flo Wet Ends and Waterway "Viper" Wet Ends. It is 1 1/4" Across the back of the...
This Seal is The (BEST) Upgraded Salt Resistant Silicon Carbide Version a PS-200 Seal used Primarily in Aqua-Flo Wetends but is found in Waterway " Viper" & "EX2" Wetends and some others as well....