FJC FJC2875 Coupler Set (9 Piece Spring Lock) Set includes: Part #2885 3/4" A/C Spring lock CouplerPart #2884 5/8" A/C Spring lock CouplerPart #2883 1/2" A/C Spring lock CouplerPart #2882 3/8" A/C Spring lock CouplerPart #2886 3/8" Fuel Line CouplerPart #2887 1/2" Fuel Line CouplerPart #2877 3/8" Fuel Line CouplerPart #2876 5/16" Fuel Line CouplerPart #2878 Transmission Line Coupler