Image Air Chief Industrial Semi-Automatic Coupler Standard Hose Barb Markets Chemical Processing, Maintenance Repair Operations (MRO) Product Options Part Number Body Size Hose ID Material DC2042 1/4" 1/4" Brass DC2043 1/4" 5/16" Brass DC2044 1/4" 3/8" Brass DC2644 3/8" 3/8" Steel DC2645 3/8" 1/2" Steel DC1044 1/2" 3/8" Steel DC1045 1/2" 1/2" Steel DC1046 1/2" 3/4" Steel