DIG's 1 GPH Button Barbed Dripper that comes in packs of 10 is easy to open and take apart for cleaning. The dripper features labyrinth water flow paths that allow for a consistent flow rate at an incoming pressure of 15 to 25 psi with higher discharge at higher pressures and lower discharge at lower pressures. Chemical and clog resistant, the drippers are an economical choice for all type of drip irrigation installations and recommended for residential, commercial and agricultural applications. These drip emitters are a low-cost solution for an individual plant, planter boxes, rows planting, vegetable rows, small to large pots, groundcovers, shrubs and trees, low-pressure gravity feed drip irrigation installations and areas where conventional sprinkler systems are not practical. The button drip emitter is made of two-piece construction and can be taken apart for cleaning by twisting the top part of the drip emitter counterclockwise and pulling it apart. Color: Blacks.