CONCEALED iN WALL: Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes as per iS 15778 (iSi marked with the prior approval of Engineer-in-Charge), having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings i/c fixing the pipe with clamps at 1.00 m spacing including jointing of pipes & fittings, with one step CPVC solvent cement and testing of pipes complete as per direction of Engineer-in-Charge. CPVC SDR 11 Pipe & fitting 25mm o/d