Red Brass View Specifications Pipe Size Exterior to Pipe Size Exterior. ManufacturerPart # Add To Cart Brass Class 125 Reducing Coupling 1/4 1/8 119RB-42 $10.31 Brass Class 125 Reducing Coupling 3/8 1/8 119RB-62 $10.50 Brass Class 125 Reducing Coupling 3/8 1/4 119RB-64 $3.08 Brass Class 125 Reducing Coupling 1/2 1/8 119RB-82 $15.13 Brass Class 125 Reducing Coupling 1/2 1/4 119RB-84 $13.06 Brass Class 125 Reducing Coupling 1/2 3/8 119RB-86 $4.46 Brass Class 125 Reducing Coupling 3/4 1/4 119RB-124 $18.86 Brass Class 125 Reducing Coupling 3/4 3/8 119RB-126 $19.47 Brass Class 125 Reducing Coupling 3/4 1/2 119RB-128 $16.98 Brass Class 125 Reducing Coupling 1 1/4 119RB-164 $22.55 Brass Class 125 Reducing Coupling 1 3/8 119RB-166 $36.49 Brass Class 125 Reducing Coupling 1 1/2 119RB-168 $32.38 Brass Class 125 Reducing Coupling 1 1/4 1/2 119RB-208 $62.03 Brass Class 125 Reducing Coupling 1 1/2 1/2 119RB-248 $72.95 Brass Class 125 Reducing Coupling 2 1/2 119RB-328 $108.52 Brass Class 125 Reducing Coupling 1 3/4 119RB-1612 $9.54 Brass Class 125 Reducing Coupling 1 1/4 3/4 119RB-2012 $52.27 Brass Class 125 Reducing Coupling 1 1/4 1 119RB-2016 $45.58 Brass Class 125 Reducing Coupling 1 1/2 3/4 119RB-2412 $74.33 Brass Class 125 Reducing Coupling 1 1/2 1 119RB-2416 $19.45 Brass Class 125 Reducing Coupling 1 1/2 1 1/4 119RB-2420 $66.01 Brass Class 125 Reducing Coupling 2 3/4 119RB-3212 $108.52 Brass Class 125 Reducing Coupling 2 1 119RB-3216 $110.57 Brass Class 125 Reducing Coupling 2 1 1/4 119RB-3220 $96.31 Brass Class 125 Reducing Coupling 2 1 1/2 119RB-3224 $98.12 Brass Class 125 Reducing Coupling 2 1/2 1 119RB-4016 $68.93 Brass Class 125 Reducing Coupling 2 1/2 2 119RB-4032 $173.87 Brass Class 125 Reducing Coupling 3 1 119RB-4816 $74.72 Brass Class 125 Reducing Coupling 3 2 119RB-4832 $230.37 Brass Class 125 Reducing Coupling 3 2 1/2 119RB-4840 $226.10 Brass Class 125 Reducing Coupling 4 2 119RB-6432 $217.50 Brass Class 125 Reducing Coupling 4 2 1/2 119RB-6440 $305.05 Brass Class 125 Reducing Coupling 4 3 119RB-6448 $305.05