The Orbit drip manifolds attach to the top of 1/2-inch male pipe thread (MPT) PVC risers of various lengths and create a simple way to carry water via 1/4-inch drip tubing to trees shrubs perennials or annuals in beds or containers. This makes them excellent as a direct replacement for existing spray heads. Drip manifolds come in a variety of port configurations from one to eight lines and there is even a version which allows you to run four drip lines and place a shrub head adapter on top of it for unique situations which require both spray and drip. Flow control versions are excellent choices for non-pressure compensating emitters and micro-sprinklers while non-flow control versions are appropriate for pressure compensating emitters and emitter tubing. The 1/4-inch barbs on the manifold rotate 360 degrees for ease of insertion and positioning of 1/4-inch drip tubing. On non-culinary secondary water install a minimum 120-mesh filter or pressure regulator to prevent debris from plugging emitters and micro-sprinklers. This drip manifold is approximately 2.13 x 2.25 x 2.13 and weighs 0.05 lbs. For outdoor irrigation use with cold water only.