X6672 Lennox Healthy Climate 16x25x5 Merv 16 Filter

Constant noise/whine developed after 6-8 weeks of furnace season. Whine immediately resolves when filter removed (not a motor bearing therefore). Whine returns in seconds when the other - new and unused - filter of two pak was substituted. Whine audible thoughout the house above soft conversation level.This was Amazon purchase of Lennox Healthy Solutions X6672 - 2 pak. three months ago. In previous years I have purchased from other suppliers approx 10 such (never noisy) filters for this same Lennox and two other furnaces. Usually these Lennox filters have been completely quiet lasting for 5-6 months until semi-annual technician furnace service and discard the old...in with the new filter time. At time of most recent Lennox furnace purchase three years ago this filter type was #1 rated (and still is) 5 FILTER in highly esteemed consumer review magazine and web site for near-hepa type home furnace filter I was pleased that these were carbon coated (have used previously x 2), again without any whine over 5+ months). Now I need service call... Will update review/rating if noise not due to filter. Years ago I purchased a furnace filter with a built in whistle designed to become noisy signal built into filter alerting re: dirt build up and time to change, but I find nothing to suggest this in Product Description and see no such device in this filter. Filter, as being used, still looks clean and no dust shake out when dropped to pavement.

Showed up fast, great filter.

Good price for high quality filters

I love that I can get a replacement filter from Same Day Supply within a day after the dreaded “replace filter” reminder comes on. The MERV 16 filter catches a lot of the particles and keeps it from blowing through the air vents in the house. It is especially dirty if there are wildfires in the LA area.

good product. Delivered quickly.

Perfect fit at half the price of dealer.

Came damaged and had to be sent back. Ended up getting one for free so it worked out in my favor but still pissed me off that the box and one out of the two filters arrived destroyed

Just what I needed.

My AC techs do not carry this size when they come to maintenance Lennox unit. So I keep them on hand and save a little money buying two.

This filter is exactly as described. Replacing the old filter was easy and I can already see our system is running more efficiently.