The highly sought after Octa-Bubbler is manufactured to be UV sunlight resistant and chemical resistant with a non corrosive plastic material for stable performance. The Octa-Bubbler has eight self cleaning， pressure compensating ports. The flow rate listed is the flow rate of each port. For example， the Blue unit is a 2 GPH unit， this means that each of the 8 ports will deliver 2 GPH. Each port has a 1/4" barb that swivels 180 degrees to provide flexibility of positioning the extension tubing in any required direction. Precision molded liquid silicone rubber diaphragm ensures pressure compensation， uniform water application and long lasting high quality performance. Ideal for converting sprinkler systems to low flow， because it is designed to apply the amount of water the plants need during the time of sprinkler zone operates. **Features and Specifications: ** * Manufactured with UV sunlight resistant， chemical resistant non corrosive plastic material for stable performance.