Thogus Polypropylene Tube Fitting, Wye, Black, 1/2" Barbed (Pack of 10) Wye branch fitting has angled inlets to reduce friction and turbulence Fitting connects to tubing on all ends Polypropylene for resistance to chemicals, abrasion and corrosion Barbed fitting creates a tight seal on flexible and semi-rigid tubing when used with a hose clamp or crimp sleeve or ferrule (sold separately) Meets standards set by NSF International and RoHS for health and safety