The three male thread connectors are respectively for tube connecting, air pressure tank and compressor piston pump. 1 x Air Compressor Check Valve. Convenient to install with the thread connecting ends.
eBay
Brass Splicer Pipe Fitting T Shape Tee Hose Barb 4 6 8 10 12 16mm Copper Barbed Connector Joint Air Water Oil Coupler Adapter
Aliexpress UK
BSP thread sizes do not refer to the overall size of the thread. A 1/4" BSP Thread is approx. 1/4" BSP Thread. Fits hoses with a 3/16" bore.
eBay
4MM To 12MM Pneumatic Fitting Tube Connector Fittings Air Quick Water Pipe Push In Hose Quick Couping PY/PU/PV/PE/HVFF/LSA
Aliexpress UK
Notice: This tube has a pair of quick connectors on both sides(C-type(Japanese ) Quick Coupling ). 1 Air Pipe Hose. Use: air compressor ventilation. Bear air pressure: 6-12KG. Color: Red. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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1-10pcs Pneumatic Check Valve SPC VPC M5 1/8"1/4"3/8"1/2" BSP Thread Air Pipe Quick Check Valve One-way Valve Connector
Aliexpress UK
16.5mm Male to Male Thread 90 Degree Elbow Connector. Elbow joint has a simple structure, is convenient to and unplug, and can be quickly connected, and the work efficiency is high. 1 Equal Male Elbow Connector.
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Elbow Bulkhead Brass Hose Connector Splicer Barb Pipe Fitting 6 8 10 12 14 19mm Tail Pneumatic Air Water Hose Coupler Adapter
Aliexpress UK
SM40 - 1/2" BSP Female Thread Quick Release Coupler. PM40 - 1/2" BSP Male Thread Connector. Item model number 1/2" BSP Male. Part Number 1/2" BSP Male. Thread type BSP. PERFECT LOCK: When using the coupler(s) slide back the sleeve, push in the connector and then slide back the sleeve fully to lock in the connector.
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5pcs Pneumatic Air Hose Tube Pipe Stop End Steel Plug Plugs Fitting Fittings Connector Male Thread Connection 1/8 1/4 3/8 1/2
Aliexpress UK
The air hose connectors can withstand greater and stronger pressure, easy installation and long service life. - The air hose connectors are high pressure resistance, corrosion resistance, long service life.
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5Pcs Brass Air Pneumatic PC Fitting 16mm 14mm 12mm 10mm 8mm 6mm 4mm Hose Tube 1/4" BSP Male Thread Pipe Connector Quick Coupling
Aliexpress UK
Air Line Hose Compressor Fittings/Connector 1/4" for BSP Male to Male&nfor for BSP;. Brass Pipe Hex Nipple Fitting Quick Adapter. 1pc Quick Adapter. 3pcs Quick Adapter. Color:Gold Tone. Suitable for air, water,, , Oil.
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5Pcs PG PEG PW PKG Plastic Reducer Pneumatic Fittings Quick Push Release Connector For 4 6 8 10 12 14 16mm Air Tube Pipe Hose
Aliexpress UK
The three male thread connectors are respectively for tube connecting, air pressure tank and compressor piston pump. 1 Air compressor check valve. Convenient to install with the thread connecting ends.
eBay
Lock Nut Straight Type PU PG 4MM 6 8 10 12 14 16MM Push in Fittings Pneumatic For Air Pipe Qucik Connector
Aliexpress UK