Compression Fittings Are Suitable For Use With The Whole Range Of Hd Polyethene Pipe. Outer Dimensions Manufactured To Iso Standards; From 16mm To 110mm. The Perfect Seal Achieved By The Rubber O Ring Ensures Complete Water Tightness Whether The Pipe Is Bent Or Straight. It Works Well In High Pressure As Well As Low Pressure Applications. The Resistance Of The 16 Bar. Fittings To Pull Out Exceeds The Requirements Of All The Standards.