Vacuum Suction Cup Level CompensatorsVacuum Cup Extensions SLSA-2 SeriesPart Number: VX1418-200-51 Specifications for SLSA-2 Series Vacuum Cup Extension Assemblies (Group 2 and 3 Fittings): Part No. Connection Thread Size Height in. (mm) Required Panel Hole Dia. in. (mm) Maximum Panel Thickness in. (mm) Weight (In Grams) Adjustable Brackets for Suspensions VX1418-200-51 G 1/8″ female – G1/4″ male 2.00 (51) 0.52 (13) 1.5 (38.1) 26