• 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 and seat the EPDM O-ring. It cannot be hand-assembled.

• No Tube Stop - Slip Pattern: Unlike a standard coupler, the slip coupler has no internal tube stop. You can slide the fitting fully onto one pipe end, then pull it back to bridge a gap - essential for in-line pipe repairs without cutting out extra pipe.

• Designed for In-Line Repairs: When a length of pipe has a split or pinhole, you cut out the damaged section, slide the slip coupler fully over one end, insert the new section, then slide the fitting back to centre and press both sides.

• EPDM O-Ring Seal - Permanent Joint: The black EPDM sealing element is rated for decades in UK domestic water and heating conditions. Deburr the pipe ends and insert to depth before pressing.

• No Naked Flame - No Hot Works Permit: No solder, no flux, no open flame. Carry out pipe repairs in occupied buildings and confined spaces without requiring hot works permits.

• Unpressed Joints Show at Pressure Test: The fitting design ensures an unpressed joint leaks visibly before any pipework is concealed. WRAS Approved. DVGW Approved. BSI Approved. 16 bar rated. 25-year guarantee.

The LavaPlumb Copper Pressfit Slip Coupler has no internal tube stop, which makes it the correct fitting for in-line pipe repairs. Why the slip pattern matters: A standard coupler has a tube stop in the centre - you can only insert a pipe to a fixed depth from each end. The slip coupler removes that stop entirely. You slide the whole fitting over one pipe end, push in the replacement pipe section from the other side, then slide the slip coupler back to centre and press both ends. You repair a burst or pinhole in 15mm copper pipe without cutting out extra material to make room for a standard fitting. Press with a compatible M15 jaw and press gun. No solder, no flux, no naked flame required. EPDM O-Ring: Rated for decades in standard UK domestic water and heating conditions. Deburr both pipe ends and insert to depth before pressing. Unpressed joints leak visibly at pressure test - you will not conceal a failed seal by accident. WRAS Approved. DVGW Approved. BSI Approved. 16 bar rated from -24 deg.C to 110 deg.C. Compatible with BS EN 1057 R250 and R290 copper tube. 25-year manufacturer guarantee.