Specification: 20mm to 160mm Standard:DIN8077-8078 Application:Cold and hot water supply PPR reducing coupling1.Size :20mm, 25mm,32mm,40mm,50mm,63mm,75mm,90mm,110mm,160mm2. Pressure grade: PN2.53. Color: white, grey or according to customers’ request4. Packing:In cartons5. Material: PPR6.Connecting:Welding PPR reducing coupling