The K200262 ASCO is a repair kit that helps you repair and replace ASCO Valves sized1”. The repair kit comes with a diaphragm assembly/seat assembly and springs for convenient repair. The diaphragm is made of rubber, thus making it resistant to corrosion. Our valve & repair kits have a warranty against failure and defects, so you can ensure that your kits will work well or we will replace them. Our valve & repair kits have a warranty against failure and defects, so you can ensure that your kits will work well or we will replace them. Our high-temperature kits are made of Viton, and you can special order silicone for kits needing to reach temperatures above 500 F. Our repair kits are made to replace the ASCO®. They are not genuine ASCO® brands are registered trademarks of Pentair plc or its affiliates. For questions please email us at firstname.lastname@example.org or call 513-737-2677. For GENUINE Parts please call 513-737-2677. The corrosive resistant kits are made of buna material and seat well during fly ash and other corrosive applications. The normal kits come in nylon and seat softer for a longer-lasting cycle life during cleaning.