The JG Speedfit Reducing Straight Coupler 22 × 15 mm is a push‑fit plumbing fitting used to join a 22 mm pipe to a 15 mm pipe in a straight line. Its tool‑free push‑fit design makes installation fast and easy — you push the pipes in and twist the nut to lock them securely — and it’s suitable for hot and cold water and central‑heating systems, working with both plastic and copper pipes when used with the correct inserts.
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