Comparison : Item # 1317-20-068N, 1/4" Tube O.D. x 1/8" MPT Nickel Plated Brass Push-to-Connect Fitting Fixed Male Elbow
Item # 1317-20-069N, 1/4" Tube O.D. x 1/4" MPT Nickel Plated Brass Push-to-Connect Fitting Fixed Male Elbow
Item # 1317-20-072N, 3/8" Tube O.D. x 1/4" MPT Nickel Plated Brass Push-to-Connect Fitting Fixed Male Elbow
Item # 1317-20-073N, 3/8" Tube O.D. x 3/8" MPT Nickel Plated Brass Push-to-Connect Fitting Fixed Male Elbow