Amazon.com: FULAIERGD 1/2 inch Tubing (1/2" ID x0.6-0.63" OD) 16mm to 1/4 inch Irrigation Tube Anti-Drop Barbed Hose Fittings (Fits 13mm ID / 4mm ID) (1/2 to 1/4 inch Four-way) : Industrial
Everbilt 1/4 in. Nylon Compression Sleeve Fittings (3-Pack) 800659 - The Home Depot
UDP T10075014 Clear Vinyl Tubing 3/4ID X 1OD X 75 ft Spool: Amazon.com: Industrial & Scientific
HYDROMAXX 1/4 in. I.D. x 3/8 in. O.D. x 50 ft. Crystal Clear Flexible Non-Toxic, BPA Free Vinyl Tubing 1403014050 - The Home Depot
Fittings | IHARA SCIENCE CORPORATION
3/4" Tube OD Straight Union | U.S. Plastic Corp.
How to Use Push-In Fittings
Tube Fittings Category | Hose Barb, Compression and Quick Disconnect Tube Fittings | U.S. Plastic Corp.
The Vinyl Tubing Y Fitting have barbed ends for securely connecting to standard vinyl and soft PVC tubing.
Vinyl Tubing and Fittings
Amazon.com: Clear Vinyl Tubing Transparent Hose 5/16" Id 7/16" Od Brewing Hose Clear Beer Draft Line For Wine And Beer Making Fountain Tubing Beverage Flexible Pvc Tubing Line Bpa Free (25 Feet) :
Amazon.com: FULAIERGD 1/2 inch Tubing (1/2" ID x0.6-0.63" OD) 16mm to 1/4 inch Irrigation Tube Anti-Drop Barbed Hose Fittings (Fits 13mm ID / 4mm ID) (1/2 TO 1/4 inch Fittings Kit) :