Poly Tubing, Black, 1/2" OD x 3/8" ID

Need tubing that hides discoloration and stands up to light exposure? This Hudson Extrusions black poly tubing in 1/2" OD x 3/8" ID is the opaque counterpart to the natural line, engineered for the same water-treatment connections but with added protection against the UV light and ambient brightness that can degrade clear tubing or encourage algae growth in lit equipment rooms. The solid black wall keeps the line looking clean year after year, even where it is exposed in a garage, basement, or utility area, and it presents a tidy, professional appearance on finished installations.

Manufactured from flexible polyethylene, this tubing shrugs off corrosion and resists the chemicals routinely found in softener and filtration systems, including chlorine and salt brine. The pliable wall lets you route the line around tanks and control valves without kinking, while the smooth interior bore promotes steady, even flow. It absorbs minor vibration and movement from pumps and valves, which helps keep connections tight and reduces noise in the system. Because the material is forgiving and easy to work with, it suits both seasoned installers and capable homeowners tackling their own water-treatment projects.

• Durable polyethylene construction for long service life
• Opaque black wall blocks light and discourages algae growth
• 1/2" outside diameter with 3/8" inside diameter
• Flexible enough to route around tanks and fittings without kinking
• Resists brine, chlorine, and dissolved minerals in treated water
• Compatible with standard 1/2" OD push-connect, barb, and compression fittings

Where it is used

Black poly tubing is a popular choice for brine lines, drain lines, and feed connections on residential and small commercial water-treatment installations, especially where the run is visible and appearance matters or where light exposure would shorten the life of clear tubing. To create a leak-free joint, cut the tubing square, deburr the edge, and seat it fully into the fitting before bringing the system up to pressure. Support longer runs at regular intervals and avoid tight bends near the connections, where stress tends to concentrate over time. Whether you are building a brand-new system or replacing aging, sun-faded line that has become brittle, this black 1/2" tubing delivers a clean, professional, and reliable result that will hold up through years of everyday operation.