Balboa Circuit Board - Leisure Bay 500S S3 Systems (53409) infusionpool this Waterway elbow body is

this Waterway elbow body is a practical replacement when a jet body with 3/8 inch air barb and 3/4 inch water slip connections is required

Replacing it can help restore the structural condition of the filter assembly and improve confidence in the installation

OEM Pentair ST40/50 DE grid

Supports cleaner and more dependable spa pump performance

less sculpted surface profile than a scalloped insert

Balboa Circuit Board - Leisure Bay 500S S3 Systems (53409) infusionpool this Waterway elbow body isA spa pack only feels dependable when the board behind it is keeping heat, controls, and equipment response in sync. This Leisure Bay 500S S3 circuit board is designed for compatible systems where the original board has stopped delivering that stable behavior and the spa no longer feels as predictable as it should. For many homeowners, that change shows up as a spa that works some of the time but no longer feels trustworthy every time. Board failures