Supply Of Supply Assembly Erection Testing And Commissioning Of Air Source Heat Pump Water Heater Capacity Is 500 Litre Type Is V Hp 500 Immersion Heaters Heating Capacity W Is 5800 W,providing And Placing On Terrace At All Floor Levels Polyethylene Water Storage Tank Isi Is 12701 Marked With Cover And Suitable Locking Arrangement And Making Necessary Holes,providing And Fixing Ptmt Extension Nipple For Water Tank Pipe Fittings Of Approved Quality And Colour 25 Mm Nominal Bore Weighing Not Less Than 62gms,providing And Fixing Gi Pipes Complete With Gi Fittings And Clamps Including Cutting And Making Good The Walls Etc Internal Work Exposed On Wall 25 Mm Dia Nominal Bore Medium,providing And Fixing G I Union In G I Pipe Including Cutting And Threading The Pipe And Making Long Screws Etc Complete New Work 25 Mm Nominal Bore,providing And Fixing Gate Valve With Of Approved Quality 25 Mm Nominal Bore,providing And Fixing Ball Valve Brass Of Approved Quality High Or Low Pressure With Plastic Floats Complete 25 Mm Nominal Bo