This listing is for a Pack of 1 Because the joint relies purely on copper and solder metal without rubber O-rings, gaskets, or plastic components, end feed couplings can endure high continuous operating temperatures—making them ideal for central heating loops, hot water supply lines, and gas installations. Once soldered correctly, capillary action draws the molten metal deep into the entire sleeve gap, creating a seamless, metallic bond that withstands high mains water pressure, thermal expansion, and system vibration as reliably as the pipe itself. End Feed Couplings are among the most inexpensive plumbing fittings available—significantly cheaper per unit than solder-ring, press-fit, or compression fittings, making them the top choice for large-scale projects and high-volume trade work. WRAS Approved and manufactured to BS EN 1254, Weight: 0.0440924524 Pounds, Manufacturer: Cubralco