Stauff 6060.3 AL SIP AF M W2 Pneumatische Spare parts Female Stud Check Valves Thread: blank filter Element Female Stud Check Valves Thread: G 1 4 Opening Pressure: 1 Bar Steel Standpipe Barrel Tee Size Type: 15L Cutting Ring&Nut On Standpipe Steel 3mm Aluminium W2 Safety Plate with Initial Tension