... projects green PPR pipesCharacteristic:1. Pressure grade: PN12.5, PN16, PN20, PN25, PN322. Size: 20mm, 25mm, 32mm, 40mm, 50mm, 63mm3. Color:white, gray ... ,green4. PN12.5 and PN16 is for cold water pipe. PN20, PN25, PN32 is for hot water. 5. Ppr material ... .6. Piping system for other industries and agriculture. High quality white/green PPR pipes