ANVER Vacuum Cups and Suction Cups Model: 150 CONNECTION PLATE Part Number: A-3150045 ANVER and P-Series Description and Part No. Notes Level Compensator Suspensions (Click Image for More Info) 150 CONNECTION PLATE A-3150045 31.50.045 The 150 Connection Plate is to be imbedded in the 150 Series suction cup’s rubber portion allowing the 150 Fitting 1/2″ to be held in place.