Pentair
Pentair MasterTemp & Sta-Rite Max-E-Therm O-Ring Kit for Manifold & Tube Sheet Coil
Best maintenance solution for pool heater owners needing leak-free performance.
Maintain your pool heater's peak performance with this O-Ring Kit, specifically designed for Sta-Rite Max-E-Therm and Pentair MasterTemp models. This genuine Pentair kit ensures a secure seal within the manifold and tube sheet coil, preventing leaks and promoting efficient operation. Essential for routine maintenance and repairs, it helps extend the life of your heater and ensures reliable warmth for your pool or spa throughout the season. Easy to install, this kit is a crucial component for keeping your heating system running smoothly and efficiently.
$20.30
Owner Satisfaction
4.7
/ 5
Category Rank
5
/ 714
#5 in Pool & Spa Maintenance Kits
Price vs Category Average
-80%
Below average
Part Number
777070120
/ -
Who it's for
- Pool owners prioritizing reliable, leak-free heater performance
- Budget-conscious owners looking to protect their long-term heater investment
- DIY repairers wanting a complete, all-in-one maintenance solution
Who should skip it
- Novice homeowners uncomfortable with complex heater disassembly
- Owners seeking a permanent, one-time maintenance fix
- Frugal shoppers preferring lower-cost, third-party alternatives
Performance breakdown
Seal Integrity
Genuine OEM manufacturing ensures a precise, leak-free fit every time.
Installation Simplicity
Straightforward design allows for quick, hassle-free maintenance by most homeowners.
Material Durability
High-grade rubber compounds withstand harsh pool chemicals and extreme thermal cycling.
System Compatibility
Perfectly engineered for seamless integration with MasterTemp and Max-E-Therm systems.
Maintenance Efficiency
Proactive replacement prevents costly manifold damage and heater downtime.
Component Reliability
Standardized OEM parts eliminate the guesswork associated with aftermarket alternatives.
Key Specs
Part Number
77707-0120
Compatible with
Sta-Rite Max-E-Therm and Pentair MasterTemp Pool Heaters
Kit Contents
O-Ring Kit
For Use With
MasterTemp & Sta-Rite Max-E-Therm
Compatibility
Pentair Max-E-Therm® and MasterTemp® Heater Burner Systems
Type
Manifold O-Ring Kit
Manufacturer Part Number
77707-0120
Intended Pool Type
In-Ground Pool, Above-Ground Pool, Spa or Hot Tub
Features
- Direct replacement for specific pool heaters
- Ensures optimal performance and prevents leaks
- Reliable solution for maintenance and repair
- Engineered for Sta-Rite and Pentair heaters
- Genuine Pentair part for reliable fit
- Maintains heater manifold integrity
- Essential for heater performance
- Keeps pool water warm efficiently
What customers say
Customers generally express high satisfaction with the Pentair O-Ring Kit, viewing it as an essential and effective solution for maintaining their MasterTemp and Max-E-Therm heaters. The overwhelming consensus centers on the precision fit of the O-rings, which is crucial for sealing the manifold and tube sheet coil effectively. Users frequently highlight that using genuine Pentair parts eliminates the guesswork and potential leakage issues often associated with aftermarket alternatives. This kit is typically purchased during necessary maintenance or repair cycles, and its successful application often results in significant cost savings compared to professional service calls or replacing larger heater components. Installation is described as straightforward for DIY enthusiasts familiar with pool heater mechanics, though the complexity of accessing the manifold itself is sometimes mentioned as a challenge—a factor unrelated to the product quality. Reviewers appreciate that the O-rings appear durable and robust, suggesting they will provide long-lasting seals against high heat and chlorinated water exposure. While some minor friction points exist regarding the perceived high price for what are essentially rubber seals, the reliability and perfect compatibility offered by this OEM kit strongly justify the investment for most consumers, solidifying its reputation as a high-quality, necessary maintenance item that restores heater efficiency and prevents costly water damage.
Know before you buy
This kit is designed specifically for Pentair MasterTemp and Sta-Rite Max-E-Therm pool and spa heaters. It is a direct replacement part for these specific burner systems.
You should consider replacing these O-rings if you notice water leaking from the manifold or tube sheet area of your heater. Replacing them during routine maintenance is also a proactive way to prevent future pressure loss or system inefficiencies.
Yes, this is a genuine Pentair part (part number 77707-0120). Using original manufacturer parts ensures the correct fit and material quality required to withstand the high-heat environment of your pool heater.
Yes, this kit is compatible with both in-ground and above-ground pool heaters, as well as spas and hot tubs, provided they use the MasterTemp or Max-E-Therm heating systems.
Yes, this kit is specifically curated to provide the necessary seals for the manifold and tube sheet coil assembly. It contains the essential components needed to restore a secure, leak-free seal.
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