Grommet Plug, 2pcs.

Using Grommet plugs, you can save on your utility bills!
This accessory is a fiberglass plate with a rubber lining that ensures a hermetic connection. Specialized rivets are used as fasteners. Grommet plugs are used to close the Hot tub Heater water circuit and conserve water in an Outdoor Hot tub. Thus, the environmental heat exchange is reduced, and the water remains warm in your Outdoor Hot tub for a longer time.

For fiberglass hot tubs and hot tub liners only.