Fitting Type: COUPLING Material: NYLON Assembled Product Length: N/A Assembled Product Height: N/A Assembled Product Width: N/A . Nylon Insert Coupling • Tougher than poly insert couplings and will absorb shock better than poly AVAILABLE SIZES: • UNC-05: 1/2" • UNC-07: 3/4" • UNC-10: 1" • UNC-12: 1-1/4" • UNC-15: 1-1/2" • UNC-20: 2"