64 pc Lot ORFS O-Ring Plug and Cap Hydraulic Flat Face Seal Fittings ORS Set Kit
3/4" Tubing O.D., Non-Threaded Cap for Tube & Hydraulic Fittings - Hi-Line Inc.
Amazon.com: ZELCAN 64 Piece ORFS Cap & Plug Kit Hose Tube and Pipe Hydraulic Fitting Set O-Ring Face Seal Cap and Plug Kit Galvanized 45# Steel with Precision Threading Sizes 4 6