The multi-stream bubbler is an ideal sprinkler for watering annuals in a flowerbed or vegetables in garden boxes. The available patterns are full, half, quarter, and center strip with gentle multi-streams that extend up to 3 feet at typical operating pressure of 30 PSI. You can decrease the spray radius, or even shut it all the way off, by turning the adjustment screw clockwise. A filter helps keep the outlet from clogging. The bubbler has 1/2-inch pipe threads and typical method of installation is to place it on top of a 1/2-inch PVC riser. Recommended operating pressure is 30 PSI. For outdoor irrigation use with cold water only.