15 X 12 RED COUPLING
20 X 12 RED COUPLING
20 X 15 RED COUPLING
25 X 15 RED COUPLING
25 X 20 RED COUPLING
32 X 15 RED COUPLING
32 X 20 RED COUPLING
32 X 25 RED COUPLING
40 X 15 RED COUPLING
40 X 20 RED COUPLING
40 X 25 RED COUPLING
40 X 32 RED COUPLING
50 X 15 RED COUPLING
50 X 20 RED COUPLING
50 X 25 RED COUPLING