LTWFITTING 3/16 in. O.D. Brass Compression Coupling Fitting (10-Pack) HF62310 - The Home Depot
Nylon Tubing 5/16 OD | Polyconn
Ironwerks 5/16" OD Tube Both Ends Lead-Free Brass Compression Union Fitting, Use With Copper, Aluminum, Plastic Tubing, Watertight Seal Waterlines or Air Pneumatic Lines- 10 Pack - Amazon.com
Lead Free Compression Fitting Male Run Tees - 5/16"COMP x 1/8"MNPT
Ironwerks Designs 5/16 in. Brass Compression Valve Cap (10-Pack) BFC.5-16.10 - The Home Depot
Amazon.com: LASCO 17-6219 5/16-Inch Compression by 1/4-Inch Compression Brass Union : Everything Else
Ironwerks 5/16" OD Tube Both Ends Lead-Free Brass Compression Union Fitting, Use With Copper, Aluminum, Plastic Tubing, Watertight Seal Waterlines or Air Pneumatic Lines- 10 Pack - Amazon.com
Lead Free Brass Compression Male Adapters - 5/16"T x 1/8 " MIP
Amazon.com: The Stop Shop Nylon or Steel Fuel Line Replacement Kit. Fittings /Tubing / Compression Fittings. 25' 8 mm Fuel line tubing : Automotive