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Tefen Fiberglass Polypropylene Compression Tube Fitting, Tee Adapter, Gray, 1/4" Tube OD x 1/4" NPT Male x 1/4" Tube OD (Pack of 5): Compression Bulkhead Fittings: Amazon.com: Industrial & Scientific
Amazon.com : Aike Chicken Poultry Waterer Drinking Cup with 3/4" PP Tee Automatic Drinkers and PP Fittings for Chicken Ducks Quail Poultry Water Drinking,8 Set : Patio, Lawn & Garden
Dixon Valve PPF125 Polypropylene Type F Cam and Groove Fitting, 1-1/4" Male Adapter x 1-1/2" NPT Male: Camlock Hose Fittings: Amazon.com: Industrial & Scientific