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3M Filtrete Allergen Reduction 1200 MPR HVAC Furnace Air Filter (12x30x1) Expired
$19.65
$46.37
Walmart has 4-Pack 3M Filtrete Allergen Reduction 1200 MPR HVAC Furnace Air Filter (12x30x1, 1142DC-4) on sale for $19.65. Shipping is free with Walmart+ (free 15-day trial available) or on $35+ orders.
Thanks to community member jugiwax for finding this deal.
About this product:
Thanks to community member jugiwax for finding this deal.
About this product:
- MERV 11 Rating
- 3-month pleated 1" home air filters for your furnace, air conditioner or HVAC system.
- Attracts and captures particles such as lint, pollen, dust, pet dander, smoke and smog
Original Post
Written by
Edited July 24, 2021
at 05:54 PM
https://www.walmart.com/ip/Filtre...ected=
QA Note: The only apparent size left for under $20 is the 12x30x1 size.
QA Note: The only apparent size left for under $20 is the 12x30x1 size.
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10x20x1
12x20x1
12x30x1
14x14x1
14x18x1
25x25x1
Check your HVAC system, it should state what type of filters it's designed to handle.
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For an extra 10min of work they could have made it accept the 4" wide ones..
Your HVAC guy is either trying to sell you filters or just dumb. The common sentiment is "less particles going to the condenser the better" but that's not the case. Your ac is only worried about airflow and big shit that will clog it. A $1 fiberglass filter and a $16 merv 15 filter are the same as far as preventing damage to your system.
No. They don't. Check cfm vs merv. You'll be surprised.
The data I posted was a merv vs cfm comparison. Very little actual difference in airflow
This has been tested in real life conditions. Why is that so hard to understand? Engineers can and have designed HVAC systems to run with higher Merv filters. Consult your HVAC system/installer.
By trapping dirt, they are doing exactly as they were designed. Any filter should be changed when it is dirty.
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Every thread, every single thread Fourm they come out of the woodwork with the misinformation. And they are always, Master Electricians, Doctors, Lawyer's. Structural Engineers, Rocket Scientists…. And although they are only 18 years old they have 40 years experience.
Every thread, every single thread Fourm they come out of the woodwork with the misinformation. And they are always, Master Electricians, Doctors, Lawyer's. Structural Engineers, Rocket Scientists…. And although they are only 18 years old they have 40 years experience.
Why do you think there are so many duct cleaning companies around?
Why do you think there are so many duct cleaning companies around?
But that is not the case for most HVAC systems designed within the last 15-20 years. It's important not to assume one size fits all. Consider your own system and purchase accordingly.