Get The Lennox X4137 Replacement Carbon Pre-Filter Delivered To Your Door

NOTE: This item is a special order and may take 1–2 weeks for delivery.

Our Lennox X4137 Replacement Carbon Pre-Filter will provide you with the cleanest air your home has ever had. This product is a genuine Lennox product, sourced directly from the manufacturer.

This furnace air filter replacement is shipped from Canada and is built for Canadian homes.

The Lennox X4137 8" Replacement Carbon Pre-Filter is the correct replacement for the following:

• Lennox HEPA-20

PureFilters is Canada's #1 furnace air filter company

From hassle free returns, to instant responses via chat/phone/email, our PureFilters team goes above the call of duty to keep your air fresh without the stress. Be sure to check out the PureFilters Blog - Use Tips and Information On Indoor Air Quality

If you need help and prefer to speak to someone, please feel free to contact us anytime!

Experience the cleanest air in your home today, without paying a premium price for it.

PureFilters - keeping your air fresh, without the stress.