4 pack of Orbit Drip System Adjustable Multi-Stream Dripper Emitter Sprinkler- TOTAL OF 40 Pieces. Check my other listings for larger quantities. The Multi-Stream Drip Emitter is an ideal sprinkler for watering annuals in a flowerbed or container. The full pattern, gentle multi-stream extends up to 3 ft. at typical drip operating pressure of 30 PSI. You can decrease the spray radius, or even shut it all the way off, by rotating the multi-stream head clockwise. The 10-32 male thread (MT) inlet on the multi-stream emitter connects to an optional 6- or 12-in. drip stake with 10-32 female thread (FT). The inlet also has a barb for direct connection to 1/4-in. tubing and you can then hold the emitter in place at each plant with a drip tubing Y-anchor stake. You can either run 1/4-in. drip tubing from a drip manifold, a 1/2-in. drip tubing "lateral" line, or directly off the hose faucet with a 1/4-in. hose faucet x 1/4-in. adapter. Recommended operating pressure is 30 PSI. For outdoor irrigation use cold water only. For precise micro-watering of trees, shrubs, perennials, or annuals Multiple streams provide gentle flow at low application rates to assist soak-in Flow control allows adjustment to a wide range of water application rates 10-32 male thread and 1/4-barb for connection into drip stakes or tubing Control with a B-hyve smart controller for optimum water conservation Easily threads onto a 1/4 inch sprinkler stake Black in color For outdoor use only For cold water use only For irrigation applications only