Copper Tube Type "K" Heavy Wall Soft Coil
Standard Domestic water use
Nominal Size (in.) O.D. Avg.I.D. Wall Thickness
1/4" | .375 | .315 | .035 |
3/8" | .500 | .430 | .049 |
1/2” | .625 | .545 | .049 |
5/8” | .750 | .666 | .049 |
3/4” | .875 | .785 | .065 |
1” | 1.125 | 1.025 | .065 |
1-1/4” | 1.375 | 1.265 | .065 |
1-1/2” | 1.625 | 1.505 | .072 |
2” | 2.125 | 1.985 | .083 |
"Know your copper" the most common are:
DWV= Thin wall, drain, vent, waste (not for pressure)
Type M=Thin wall (residential)
Type L=medium wall (commercial/residential)
Type K=Heavy wall (underground) SOFT Coil