4 in expansion or contraction per 1000 ft per 10 deg F temperature change|1.41 specific gravity|7000 psi tensile strength|115 R-scale hardness|450 V/mil dielectric strength
CRESLINE Cellular Core Pipe, 1-1/2 in Nominal, Plain, 1.9 in Outside Dia, 20 ft Length, 0.145 in Wall Thickness, SCH 40/STD, PVC, ASTM F891, NSF Approved