A reliable solution for quick, solder‑free pipe connections – the 4‑Pack Brass Compression Coupler 10 mm → 3/8″ BSP Male Fitting. Each connector is forged from solid brass and comes with a pre‑loaded olive inside the compression nut, so you can tighten it by hand and enjoy a leak‑free joint in seconds.
Why choose this coupler?
– WRAS approved – meets the Water Regulations Advisory Scheme standards for both hot and cold water systems.
– High performance – works up to 90 °C and 16 bar pressure, making it suitable for domestic plumbing, heating circuits, and industrial water lines.
– Easy installation – perfect for tight spaces or when soldering isn’t practical; just slide the olive onto the pipe, insert the male end, and tighten the nut.
Key specifications
– Quantity: 4 male straight compression connectors (pack)
– Connection size: 10 mm (internal) to 3/8″ BSP (external)
– Length: 30 mm
– Material: Brass (EN1254‑2 compliant)
– Max operating temperature: 90 °C
– Max operating pressure: 16 bar
Whether you’re fitting a new bathroom tap, linking a boiler to pipework, or upgrading an existing system, these brass compression couplers deliver a fast, durable connection without the mess of solder. Ideal for DIY enthusiasts and professional plumbers alike.





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