GROCO ARG-2 Strainer Service KitARG 2 Strainer Service Kit ARG Series raw water strainer service kit. Compatible with the Groco ARG 1000, 1210 and 1250 series strainers. In the Box: (1) 2 157 Sight Glass O Ring (1) 2 232 Cap O Ring (1) 2 229 Cap O Ring (4) PFW 2 Set Sight Glass Bolt Washer (1) 2 011 Drain Plug O ring Before 08 01 01 (1) 2 111 Drain Plug O ring After 08 01 01 *Sold as an Individual