Comparison : Item # 3182, 3/8" x 18mm x 1.50 Tube Nut (O-ring) to Hose Bump Repair Line (4")
Item # 3183, 3/8" x 16mm x 1.50 Tube Nut (O-ring) to Hose Bump Repair Line (4")
Item # 3184, 3/8" x 16mm x 1.50 Tube Nut (O-ring) to Hose Bump Repair Line (4")
Item # 3185, 3/8" x 5/8" - 18 Tube Nut (O-ring) to Hose Bump Repair Line (3-3/4")
Item # 3186, 5/16" x 5/8" - 18 Tube Nut (O-ring) to Hose Bump Repair Line (4")