ANVER Vacuum Cups and Suction Cups Model: Flat with Valve F40-SIT/VALVE Part Number: A-3150050S ANVER and P-Series Description and Part No. Connection Thread Size Static Diameter* in. (mm) Static Height* in. (mm) Load Capacity at 24 in. Hg (609.6mm Hg) [2:1 Safety Factor] lb (kg) Pull-Off Capacity at 27 in. Hg (685.8mm Hg) [1:1 Safety Factor] lb (kg) Level Compensator Suspensions (Click Image for More Info) F40-SIT/VALVE (Translucent Silicone) A-3150050S 31.50.050S F40-20.20.04UV G 1/8″ Female 1.66 (42.1) 0.80 (21.0) 4.89 (2.22) 11.00 (4.99)