$60.99 Reusable Hose Barb Set 1/4u0026#034; NPT - 1/4u0026#034; ID X 1/2u0026#034; OD hose - Air Hose FIttings | eBay
1/2 I.D. Airbrake Hose Repair Fitting - Hi-Line Inc.
Pneumatic Push In Air Fittings - Male Connector 6mm hose - 1/2 BSP Thread - Air Parts Australia
