Two Little Fishies PhosBan Reactor 150, 3 inch Clear Washer

Two Little Fishies PhosBan Reactor 150, 3 inch Clear Washer

Note - They may come in "clear" or "black"

Note - These are the older style washers and are flat and very thin. If the washer you have is 1/8" thick you will need the newer style washer part # PBR-NEW3INWASH