General description Replacement pressure relief valve assembly designed for Polaris automatic pool cleaners 180, 280, and 380. This part is easy to install, requiring only the unscrewing of the old valve and screwing in the new one. Technical specifications Part number: 9-100-9002 Material: Sturdy and wear-resistant ABS Plastic Installation Quick disconnect installation Simply unscrew the old part and screw in the new part Usage Compatible with Polaris automatic pool cleaners 180, 280, and 380