Prevents suction cup leaks and vent hole blockages. Allows the cup to be used at angles. Fits snugly under the cup lid.
DeVilbiss KR-115-K5 Drip Free Pack of 5 Diaphragms For Suction Cups
DeVilbiss - Drip Check Lid - Kit of 5 (GFC-2-K5)
CENTRE SEAL TO FIT AC DELCO U & UF TYPE FUEL PUMPS with 6 screw,80mm Diaphragms
Lift pump diaphragms for CAV DFP3 pumps
Sealey Drip Tray Low Profile 100L Dripping Drip Workshop Garage