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M14 M16 M18 M20 M22 M24 M26 1/4" 3/8" 1/2" 3/4" 1" Bsp Male Alu Oil Level Sight Glass Window Air Compressor - Pipe Fittings - AliExpress
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2PCS 1/2"BSP x 3/8"(9.53mm Tube) Double Ferrule Tube Pipe Fittings Threaded Male Connector Stainless Steel SS 304 Good Quality - AliExpress
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BSP Threads are internationally adopted threads to connect and seal pipes and fittings. So nice and simple? - U-Bolts-R-Us / Graphskill Ltd Blog
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