★★★★★ 5
Good quality for the money
Very easy to install and looks OEM
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Reviewed in the United States on November 30, 2023
77707-0118 Pentair Coil Sealing O-Ring Kit | MasterTemp & Max-E-Therm 300 Heater Tube Sheet | 10 Pack
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
77707-0118 Pentair Coil Sealing O-Ring Kit | MasterTemp & Max-E-Therm 300 Heater Tube Sheet | 10 PackEliminate tube sheet leaks and restore your heater's sealing integrity with the Pentair Coil Tube Sheet Sealing O Ring Kit (77707 0118), built for MasterTemp and Max E Therm 300 heaters. This 10 pack of factory spec O rings delivers complete tube sheet coverage, creating a pressure tight seal that prevents water seepage and energy waste. Each O ring is produced from industrial grade rubber compounds that resist heat fatigue and chemical attack,
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Exchange/Return Notes
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- Final sale items are not eligible for returns or exchanges.
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4.0 ★★★★★
Based on 646 reviews
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Product Reviews
★★★★★ 5
Worth every penny
Great profuct. Exact fit. Comes with instructions. Took me about 6 minutes to take off the old ones and put the new ones in.
Gave my 335i an aggressive look. Will definitely be buying more from this seller!
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Reviewed in the United States on January 11, 2019
★★★★★ 5
Perfect Fit
Very easy to install and looks great, the prefect addition
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Reviewed in the United States on July 6, 2021
★★★★★ 5
Fits and looks good
Model: E46-4door, Size: Double Slats-Glossy Black
Fit great, looks good. Would recommend for e46
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Product as described!
Product as described. Nice snug fit for the 325ci!
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Reviewed in the United States on December 8, 2025
