• Press Tool Required - Not Push Fit: This is an M Profile press fit fitting. You need a compatible press gun and M15 jaw to compress the sleeve onto the copper tube and seat the EPDM O-ring. It cannot be hand-assembled. Pack of 10 supplied.

• WRAS, DVGW and BSI Approved: Certified for hot and cold water services, vented and unvented closed circuit heating systems, and chilled water. Rated to 16 bar from -24 deg.C to 110 deg.C.

• Joins Two Lengths of Copper Tube: The straight coupler connects two equal-diameter copper tube ends in a continuous run. Both ends are press x press - no tube stop in the slip pattern variant.

• EPDM O-Ring Seal - Designed to Outlast the Pipe: The black EPDM sealing element handles standard UK domestic water and heating conditions. Clean the pipe end, deburr it, and insert to the correct depth before pressing.

• No Naked Flame - No Hot Works Permit: No solder, no flux, no open flame. Use these in occupied buildings, timber-framed structures, and confined spaces where hot works permits would otherwise be required.

• Unpressed Joints Show Before You Commission: The fitting design means an unpressed joint leaks visibly at pressure test, before any pipework is concealed. You will not hide a failed joint by accident. 25-year manufacturer guarantee.

The LavaPlumb Copper Pressfit Straight Coupler joins two lengths of 15mm copper tube in a continuous straight run. Push the pipe into both ends of the fitting and press with a compatible M15 jaw and press gun. The EPDM O-ring seats permanently against the copper - no solder, no flux, no naked flame. Three things buyers commonly ask: Will the O-ring last? The EPDM element is rated for decades in standard UK water and heating conditions. Clean the pipe end, remove all burrs, and insert to the correct depth. Those three steps are what guarantee a permanent joint. How do I know if a joint was not pressed? The fitting uses a leak-path design. An unpressed joint leaks visibly at your pressure test before pipework is concealed. You will catch it every time. Will it work with my press tool? These use the standard M Profile jaw system. You need a press gun that accepts M Profile jaws and the correct M15 jaw size. Confirm with your press tool supplier before ordering. Rated to 16 bar from -24 deg.C to 110 deg.C. WRAS Approved. DVGW Approved. BSI Approved. Compatible with BS EN 1057 R250 and R290 copper tube. 25-year manufacturer guarantee against manufacturing defects. This listing supplies a pack of 10 fittings.