Pentair MasterTemp/Max-E-Therm O-Ring Kit [After 1/12/2009] (474201) matrix Draining a heater for winterization

Draining a heater for winterization

A part like this is especially useful when the owner wants to refresh the visible face of the jet while also restoring the internal flow behavior that contributes to the overall seat experience

Supports proper heater temperature control and response

and SP1700 pump applications where the front strainer section needs replacement as a more complete assembly

A valve like this is useful because it helps control gas flow through the heater

Pentair MasterTemp/Max-E-Therm O-Ring Kit [After 1/12/2009] (474201) matrix Draining a heater for winterizationKeeping 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