Easily water and fertilize tree roots with the Corona RootIRRIGATOR with ComfortGEL Grip. This root irrigator easily applies water and fertilizer below the soil to help promote deeper roots that grow further from the trunk. The detachable 3-inch brass valve allows you to efficiently control the irrigator's water flow, and the 12-, 18- and 24-inch depth markers help ensure accurate irrigation. Featuring an anti-blister ComfortGEL Grip, this irrigator is designed to offer a more comfortable experience and reduce hand fatigue when gardening and landscaping. Reach for Corona's RootIRRIGATOR to grow stronger and healthier tree roots and plants.