Pentair MasterTemp Tube Sheet Coil
Best replacement part for restoring efficiency to 250K BTU pool heaters.
This is the definitive fix for restoring a sluggish pool heater to its former glory. By replacing the entire heat exchanger assembly rather than patching individual leaks, you trade a slightly more involved installation for the peace of mind that comes with a factory-fresh, fully sealed system.
$899.95
In stock
at
Sunplay
Owner Satisfaction
4.3
/
5
Category Rank
393
/
681
#393 in Pool Heaters
Price vs Category Average
-36%
Below average
BTU Output
250000
/
, BTU
Who it's for
- Pool owners prioritizing factory-standard reliability and seamless heater integration
- Homeowners seeking rapid, efficient heating for their pool or spa
- Maintenance-minded owners wanting to protect their heater's long-term system integrity
Who should skip it
- Budget-conscious owners looking for affordable repair alternatives
- DIY enthusiasts lacking specialized tools or professional heating experience
- Pool owners struggling to maintain balanced water chemistry
Performance breakdown
Material Durability
Titanium construction offers superior resistance to harsh pool chemicals and corrosion.
Installation Completeness
Includes every necessary seal, gasket, and ignitor for a seamless swap.
Compatibility Precision
Strict manufacturing date requirements ensure a perfect fit for specific models.
Thermal Efficiency
Restores original heating speed and BTU output to factory-new standards.
OEM Reliability
Genuine Pentair engineering guarantees long-term operational safety and system integrity.
Maintenance Ease
Requires significant technical proficiency to install correctly without damaging internal components.
Key Specs
BTU Output
250,000 BTU
Heater Type
Gas
Fuel Type
Natural Gas and Propane
Compatibility
Pentair MasterTemp 250,000 BTU Heaters (Manufactured After January 12, 2009)
Manufacturer Part Number
474059
Heat Exchanger Material
Titanium
Included Components
Coil/Tubesheet Sealing O-ring Kit, Insulation Kit (77707-0008), Ignitor (77707-0054), Blower Adapter Plate and Gasket Kit (77707-0011), Clamp Ring, Clamp Bolt, nut and O-ring
Installation Location
Outdoor
Know before you buy
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Ask Metto anything about the Pentair MasterTemp Tube Sheet Coil before you decide.