Guard against tubesheet leaks with the Pentair Coil Tubesheet Sealing O-Ring Kit (77707-0117), engineered for MasterTemp and Max-E-Therm 175 and 200 heaters. Supplied as a 6-pack, these professionally graded O-rings form a tight, moisture-proof seal around the tubesheet, preserving heater pressure and thermal output. Crafted from chemically resistant elastomers that withstand prolonged exposure to heat and pool water chemistry, they maintain their sealing properties over an extended lifespan. Drop-in installation makes them an ideal choice for scheduled heater upkeep.

Key Benefits

• Engineered for 175 and 200 Heaters: Shaped and sized to perfectly seal MasterTemp and Max-E-Therm 175 and 200 heater tubesheets, guaranteeing accurate placement and a reliable fit.
• 6 Professionally Graded Seals: Ships with 6 O-rings that deliver a moisture-proof barrier, keeping your heater's tubesheet connections completely sealed.
• Preserved Thermal Output: Maintaining a solid seal prevents heat and pressure loss, allowing your heater to run at its full rated efficiency.
• Chemically Resistant Elastomers: Formulated to resist degradation from pool chemicals and sustained high temperatures, retaining flexibility and sealing strength over time.
• Drop-In Installation: Designed for effortless replacement during routine service, so you can complete the job quickly without specialized tools.

What's Included

• Pentair 77707-0117 Tube Sheet Coil Sealing O-Rings

Compatibility

• Pentair MasterTemp Heaters Models: 175NA, 175LP, 200NA, 200LP
• Pentair Sta-Rite Max-E-Therm Heater Model: 200

Specifications

• Brand: Pentair
• Part Number: 77707-0117

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77707-0117
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