Quick Disconnect Tube Fitting with Auto Shut-Off - Acetal Plastic - Straight - 1/4" Plug x 3/8" Barbed Hose - Walmart.com
Watts 1/2 In. x 3/8 In. OD Tubing Quick Connect Plastic Coupling - Parker's Building Supply
John Guest 3/8 in. Push-To-Connect x 1/4 in. FIP Polypropylene Adapter Fitting 803379 - The Home Depot
Plastic Barb Fittings - 3/8" x 1/4" Red. Splicers Polyethylene
Plastic Nylon 1/4" 3/8" 1/2" 3/4" BSP Male Thread Equal Hex Nipple Union Pipe Coupling Fitting Connector Coupler For Water Oil - AliExpress
Watts Water 3515-08/P-400 Quick Connect Tube Coupling, 3/8 Inch Plastic, 250 Psi Pressure: Polysulfone Plastic Push It Fittings (098268298550-1)
Watts 3/8 In. x 3/8 In. OD Tubing Quick Connect Plastic Coupling - Crafty Beaver Home Center
RV Fresh Water Plumbing Coupling 3/8" Tube ID x 1/2" NPT Elbow Polypropylene Threaded Adapter
Amazon.com: PureSec 3/8 inch Tee Connector Push to Connect Fittings Plastic Quick Fitting for water purification&RO System (5, 3/8" Tube O.D.X3/8" Tube O.D.X 3/8" Tube O.D.) : Industrial & Scientific
Midland Metal Mfg. 20029p 3/8 Plastic P-in Tee, Plastic Fittings, Plastic Push In, Union Tee | Blackhawk Supply