Vacuum Cups and Suction CupsTube Fittings for SLSA-3 Series Vacuum Cup Suspension Assemblies Item No.: 2200P-4-4 Part No. Description L in. (mm) H in. (mm) Fitting Material 2200P-4-4 Elbow, 90° 1/4″ NPT – female 1.18 (30) 1.18 (30) Electro-Less Nickel-Plated Material: All-metal, electro-less nickel-plated brass fitting