Poly-Flo tubing is ideal for use in pneumatic lines, pitot and static lines, instrumentation systems, and water lines (as well as limited food service). It is constructed with low-density polyethylene to provide dimensional stability; a strong form structure; and high resistance to heat, stress, sunlight, many solvents and chemicals, as well as vermin attacks. This polyethylene tubing (EDMO# 44PY) has a 1/4-inch outside diameter and a yellow color.