Inches (")
The PI product range in inch dimensions from 5/32 "to 1/2" is made of gray acetal copolymer (POM) material and is provided with a food-approved Nitrile-O-ring. Due to the fact that the material can be used for food-approved purposes, the coupling is ideal for use in food and drinking water and water treatment. It is also possible to use the coupling for air, non-combustible gases (eg N2 and CO2) and for vacuum.
John Guest couplings are available in two colors of gray which are inch "or black which is millimeter mm.
Comparison of inches metric (for the outside diameter of the pipe) 5/32 "= 4.00 mm 1/2" = 12.70 mm 3/16 "= 4.80 mm 5/8" = 15.90 mm 1/4 "= 6.35 mm 3/4" = 19.05 mm 5/16 "= 8.00 mm 1" = 25.40 mm 3/8 "= 9.50 mm
