Description
Coast Spas 2-1/2-inch filter bypass flapper, a small flap in the filter housing that manages how water bypasses the filter. A missing or damaged flapper can let water skip the filter or disrupt flow. Confirm the 2-1/2-inch size and how the flapper seats in your housing before ordering.
Search: filter bypass flapper, 2.5 inch flapper, spa filter bypass, hot tub filter flap