Thogus Polyethylene 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 Polyethylene is chemically inert, resists cracking, and is a barrier to gases, vapors, and moisture 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