Quickun 1 2" Barb Hose One Way Inline Check Valve Non Return Ozone Resistance PVDF Plastic One Way Fuel Oil Water Gas Pump Air Check Valve, 2 Pcs 0.5 Inch industrial Sealed bearings and axle bolts 26 Thread length 11mm Sealed bearings and axle bolts with sealing ring 300Pcs 3:1 Heat Shrink Tubing Kit 200 Pcs Heat Shrink Butt Connectors Terminals 300 Pcs Heat Shrink Wire Connectors Waterproof 810 Pcs Heat Shrink Wire Connectors Waterproof 1200 Pcs Electrical Crimp Connectors 200Pcs 3:1 Heat Shrink Tubing Kit Quantity 300 200 200 Types heat shrink tubes butt connector Wire Connectors Wire Connectors ring the port outer diameter is available in 4 sizes The pipe port designs a pagoda card slot