Pentair MasterTemp/Max-E-Therm O-Ring Kit [After 1/12/2009] (474201) couplings Useful when the original switch

Useful when the original switch no longer responds cleanly

Using the correct extended closed plug tool helps reduce technician effort

or when the handle is damaged or missing

Matching the correct flow-thru manifold helps preserve intended fit and dependable multi-line performance

Pentair MasterTemp/Max-E-Therm O-Ring Kit [After 1/12/2009] (474201) couplings Useful when the original switchKeeping pool equipment in dependable condition often comes down to the right replacement component; this MasterTemp Max E Therm O Ring Kit [After 1 12 2009] is built for that role. Because pool equipment operates under heat, pressure, water exposure, and repeated service cycles, choosing the correct replacement helps reduce callbacks. For MasterTemp and Max E Therm systems, a correct replacement supports safer troubleshooting and a cleaner return to