77707-0119 Pentair Coil Sealing O-Ring Kit | MasterTemp & Max-E-Therm 400 Heater Tube Sheet | 12 Pack

77707-0119 Pentair Coil Sealing O-Ring Kit | MasterTemp & Max-E-Therm 400 Heater Tube Sheet | 12 Pack

Marsoni

M251S

$45.99

Get it in 3 business days with 1 day shipping. Friday, May 29

77707-0119 Pentair Coil Sealing O-Ring Kit | MasterTemp & Max-E-Therm 400 Heater Tube Sheet | 12 PackSeal every tubesheet connection on your 400 series heater with the Pentair Coil Tubesheet Sealing O Ring Kit (77707 0119), designed for MasterTemp and Max E Therm 400 heaters. Packaged as a generous 12 pack, these precision cut O rings provide comprehensive sealing across all tubesheet points, blocking leaks and maintaining proper system pressure. Each seal is formed from advanced elastomeric material that stays flexible and resilient through extreme

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The product is great and is OEM+ in quality. This has to be the easiest cabin air filter I have ever changed. The replacement is super simple. Take off the glove box by pressing in (check for Youtube videos), remove and take the plastic tray out, remove the old filter, and install the new one into the plastic tray, making note to match the direction of the arrows. Reinstall and you are done. Replace once a year.

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Reviewed in the United States on August 9, 2024

Verified Purchase

Dave K

Draper, US

★★★★★ 5

The best you can get!

I use Purolator filters exclusively. Top quality filter from a company that specializes in filters.. I use them everywhere a filter is needed. Never a failure and top quality filter media.

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Reviewed in the United States on November 8, 2025

Verified Purchase

a g

Lexington, US

★★★★★ 5

Clean air

Perfect fit for my 2023 Toyota highlander hybrid.

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Reviewed in the United States on July 30, 2025