REGENT CONCEALED THERMOSTATIC SHOWER MIXER SET Single cast body, high-grade brass is featured in this premium quality valve. It is designed in a way that if maintenance is required whole valve does not require re-plumbing. Built-in anti-scald device means no more fluctuating water temperatures while showering. 1/2" outlet diameter 3/4" hot/cold inlets with built-in non-return valves to prevent backflow For more dimensions please see technical drawing SLIDE RAIL KIT Standard connection sizes - 1/2" For more dimensions please see technical drawings SHOWER HEAD & ARM Connection size - 1/2" Head size - 8" 320mm shower arm WORKING REQUIREMENTSFor this shower to operate efficiently your water system will need to produce at least 0.5 bar of pressure, though we recommend 1.0 bar for best performance.This can be achieved if you have one of the following: Combination boiler systems Gravity fed systems Megaflow system Pumped hot water systems Un-vented hot water systems Standard pressurised hot water cylinder type systems WHAT'S IN THE BOX? Thermostatic shower mixer valve x 1 Slider rail x 1 Handheld showerhead x 1 Shower hose x 1 Wall bracket with outlet x 1 Fixed shower head and arm x 1 Discover your dream bathroom at HOUSE OF ENKI, from units to fixtures, furnishings, fittings and more we'll help you create the perfect bathroom.