Universal Scuba Service Spare Parts Rebuild Seat Assembly 1/2 -20UNF Thread & O-s & Handwheel Washer Tanks

Description: High quality replacement parts for most scuba cylinder s. Made of copper material corrosion resistance. Smooth and durable . Includes washer gasket and oxygen compatible O-rings. Contains the plug and seat assembly. Specification: Material:Copper Rubber Seat Assembly:Size:Thread: 1/2 -20UNF;Length: Approx. 18mm / 0.71inch Washer Gasket:Inner Diameter:11.2mm/0.44inch;Outside Diameter:16mm/0.6inch;Thickness:0.8mm/0.03inch White Washer Gasket:Inner Diameter:6.3mm/0.24inch;Outside Diameter:11.2mm/0.44inch;Thickness:1.7mm/0.07inch Package Includes: 1 Piece Scuba Seat Assembly 2 Piece Washer Gasket 4 Pieces O-rings Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!