PVC-U threaded fittings for water supply (BS) 1.Size:1/2"- 4" 2:Standard:BS 2.Best Quality, Lowest Price, Best Service... PVC-U threaded fittings for water supply (BS)1.Material:PVC2.Size:1/2"- 4" 3:Standard:BS 4.Best Quality and service, Lowest Price. Feature:1)Good electrical insulation ,Simple installation2) Good chemicals and drugs resistance3) Both outside and idside surface are smooth,so ...