Quickun 5/16" Hose Barb Fitting Plastic Equal Barb Joint Splicer Mender Adapter Union for Tubing Pipe Air Line (Pack of 5): Amazon.com: Industrial & Scientific
Everbilt 3/4 in. Barb Nylon Splicer Fitting 800309 - The Home Depot
Everbilt 1/2 in. Barb x 1/2 in. MIP Nylon Adapter Fitting 800409 - The Home Depot
PLASTIC HOSE BARB 1/4" BARB X 1/4" MNPT - Northeast Agri Systems
1/8" NPT to 3/8" hose barb plastic elbow fitting TSD933-8
Plastic Barbed Insert Fittings for Polyethylene Pipe
Amazon.com: Plastic Hose Barb Fitting, Hose Fitting Adapter for Air Water Fuel 3/16" x 3/16", 1/4" x 1/4", 3/8" x 3/8", 1/2" x 1/2", 5/8" x 5/8" 8Pcs : Industrial & Scientific
3/4" NPT to 1" Hose Barb Fitting - Standard 3/4 Thread | SWELL Wakesurf
Amazon.com: ANPTGHT 1/4” Thru-Bulk Bulkhead Plastic Hose Barb Fittings Union Adapter Fittings for Aquarium Fuel Gas Liquid Air with Metal washers (Pack of 6) : Industrial & Scientific