Ideal for first time user, the DIG G77AS drip irrigation kit is a complete kit for irrigating groundcovers, shrubs, trees, flowers, roses, vegetable gardens and vines. The kit has all the parts needed to start a system from a faucet or a garden hose and covers up to 150 sq-ft. This kit easily expands with DIG's complete line of drip products to cover a larger area of up to 400 sq-ft as more plants are added using additional drip tubing and PC drip emitters with the same flow rate. The kit includes a 3/4 in backflow preventer, 3/4 in 25 psi pressure regulator, 3/4 in swivel adapter, 50 ft of our premium 1/2 in drip tubing with 0.6 ID x 0.7 OD, 50 ft of 1/4 in micro tubing, PC drip emitters with twenty 1 gph, two 2 gph and two 4 gph PC drip emitters and all the necessary parts needed to complete the installation.