Vacuum Suction Cup Level CompensatorsSuction Cup Level Compensator Mounting BracketsPart # 28500232 Part No. A in. (mm) B in. (mm) C in. (mm) Description Weight lb (grams) 28500232 0.48 (12.7) 1.00 (25.4) 4.00 (102) Mounting Bracket for SLSA-1 Alum – 1 x 4 x 0.48 0.141 (64)