Auto Air Vent - Main Eco/Eco Elite

Marsoni

M251S

$15.45

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

Auto Air Vent - Main Eco/Eco EliteAutomatic air vent designed for Main Eco and Eco Elite boiler systems. Removes trapped air from the heating circuit to maintain optimal system performance and efficiency. Essential maintenance component that prevents airlocks and ensures consistent water circulation. Compatible with Main boiler models featuring standard air vent connections. Straightforward installation on the highest point of the heating system. Helps reduce noise and improve heat

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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perfect fit for my 2022 civic! took 5 min! (not an exaggeration) soooo many youtube videos but alll you gotta do is - 1) locate engine air filter holder 2) undo fasteners on the sides 3) lift black part up 4) pull out old filter 5) put in new filter, 6) redo fasteners DONE! dealership wanted to charge me $85 for this!!!!! forget that , do it yourself! it’s easy for girls too!! don’t be intimated :)

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Reviewed in the United States on October 29, 2025

Verified Purchase

Steve S.

Grantham, US

★★★★★ 5

Great product!

High quality; great product; highly recommended!

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Reviewed in the United States on July 27, 2025