This is an o-ring kit designed for the Hayward S240 sand filters. The kit includes SPX605Z2 o-ring, S405 o-ring, SX200Z6 lid o-ring, SX240Z1 tank o-ring, SX180G gasket, and a 6 gram silicone packet.
These o-rings are manufactured by a Poolweb partner and are designed to exceed manufacturer specifications.