NDL Copper Reducing Coupling C x C Breadcrumb Home / Products / Parts / Fittings / Copper Fittings / Copper Couplings / Copper Reducing Couplings C x C Loading... Customer Part Number: 400R-358318 Brand: NDL Connection Size (In.): 3-5/8 x 3-1/8 Fitting Type: Reducing Coupling Industry Number: W 10101 Material: Copper Net Weight (Lb.): 1.43 Quantity per Package: 25 Size (In.): 3-1/2 x 3