Adapter Nut - Petcock - 22mm to 3/8 inch NPT - Chrome - Pingel | Honda Motorcycle Parts | Randakk's Cycle Shakk
Oxygen, Hudson Elbow Adapter Standard 22mm I.D. / 22mm O.D. Connection - Penn Care, Inc.
20mm 22mm Watch Band Adapter | Band Sports Watch Connector | Watchband Connector Parts - Watchbands - Aliexpress
Oxygen Tubing Adapter, 22mm I.D x 5 to 7mm Taper | Bound Tree
2pcs Faucet Adapter, 22mm NPT Male Thread Transfer to Male Thread, Tap Connector for Bathroom Kitchen Water Purifier Adapter Aerator (16mm Male - 22mm Male) - - Amazon.com