This Bristan Traditional Shower Valve has fully adjustable pipe centres - Adjustable Elbows Meaning this shower will replace showers with 110mm centres, 130mm centres, 138mm centres as well as the industry standard 150mm, and anything inbetween! Elbows can be adjusted for exposed pipework running up and down the wall at the wide range of centres mentioned above. Each Bristan Mini Valve comes with 2 sets of elbows allowing you to replace almost any shower mixer valve which has centres or 110mm or 155mm or anything inbetween. Choose the correct elbow configuration to suit your Inlet centres: 2 x small elbows 110-130 centres 2 x large elbows 136-155 1 small elbow / 1 large elbow 125-145 Suitable for both domestic and commercial installations Features Single .