Tee union nylon push to connect tube fittings offer easy installation of air lines by simply pushing tubing into fitting, no gluing or special tools required. These reusable push to connect fittings have a 1/4" OD and allow maximum air flow and faster connection than standard compression fittings. Milton® nylon push to connect tube fittings are designed for use with nylon, polyurethane, or low and high density polyethylene tubing. Reusable by simply pushing sleeve in and release the tubing. Great for garage or shop, tee fittings pivot 360 degrees Fahrenheit or ease of installation.