... distribution, floor heating, residential or industrial plumbingAdvantages:1.100% imported raw materials and machines produced2.purely environmentally ... mm Outside Diameter, 15.2 mm Inside Diameter x 50 m long 25 mm Outside Diameter, ... 25 mm Outside Diameter, 20 mm Inside Diameter x 100 m long 32 mm Outside Diameter, 27. ... Inside Diameter x 50 m long 63 mm Outside Diameter, 50.8 mm Inside Diameter x 100 m ...