Irritrol's IPN-15H 15' Fixed Spray Nozzle comes from the I-Pro Series. The IPN-15Hhas a flow rate of 1.51 - 2.36 GPM. It has a half-circle spray arc. The IPN-15H has a 15' radius. It has a pressure rating of 20 - 50 PSI. Irritrol has made their name as a brand by selling and marketing exclusively to the professional installer, as a result their products are geared to be dependable and durable. Irrirtrol is now making their products available to you through our website. If you are looking for a product line that will last year in and year out, Irritrol is the brand for you.