1/4-inch drip fittings press into the inside of 1/4-inch drip tubing and are held firmly in place by a barb. They come in a variety of shapes, including tees, elbows, couplings, and plugs, which allows them to satisfy the needs of many different garden layouts and container sizes. Drip fitting assortment packs are a convenient way to purchase a variety of fittings. Use the drip tubing punch tool to create a hole in 1/2-inch drip tubing which makes it easy to insert a 1/4-inch fitting into the tubing. For outdoor irrigation use with cold water only.