Shaft Seal | Pentair | U109-93SS (MasterTemp, Sta-Rite Max-E-Therm)

The Pentair MasterTemp & Sta-Rite Max-E-Therm Heater Shaft Seal U109-93SS is a precise replacement part that stops leaks and preserves thermal efficiency in your pool heater. Built for Pentair MasterTemp and Sta-Rite Max-E-Therm models, this seal helps maintain consistent water temperature control while extending the life of your heater by shielding critical components from moisture and misalignment. A stainless-steel design delivers durability across seasonal cycling and temperature swings, reducing downtime and the need for frequent service calls.

• Direct replacement for U109-93SS seals in MasterTemp & Max-E-Therm units
• Stainless steel construction for corrosion resistance and long service life
• Prevents leaks around the heater shaft, protecting the heat exchanger and electronics
• Precisely machined for a tight, wobble-free fit and easy installation
• Supports consistent water temperature and reduces maintenance downtime

Investing in this direct replacement shaft seal reduces maintenance downtime and keeps your pool comfortable longer. Add to cart now to secure a reliable seal for your MasterTemp or Max-E-Therm heater and enjoy a warmer pool season.