... ISO14001 2.DC,3V, 3.energy-saving,water-saving 4.blister packing water valve 1.CE,ISO9001,ISO140012.DC,3V,3. ... energy-saving,water-saving 4.blister packing Water volume regulator brass angle water valve (FW-6K32) Model No: FW ... the knob clockwise for much water, turn anticlockwise for less waterCertification: CE,ISO9001,ISO14001 Water volume regulator brass angle water valve (FW-6K32)