Name: MERV 11 Custom Single
Brand: Aerostar
Price: 120.99 USD
Availability: InStock

How to Measure Your Filter

Steps 1 & 2

Measuring Length and Width (L x W). (If your filter is not a square, the smallest measurement goes first).

Step 3

Measure the thickness (Depth) of your filter from front to back.

Step 4

Put Your measurements together (L x W x D).

Actual Size

A filter’s true dimensions.

Example: 19.75” x 19.75” x 1”

Nominal Size

Rounded numbers used by manufacturers.

Example 20” x 20” x 1”

View Detailed Instructions

About MERV 11 Custom Single

Actual Size: MERV 11 Custom Single Product: P15CS.010099 11 Fights: Micro Allergen

MERV 11 Custom Single

Air Filter Type: 0

FPR Rating: FPR 7

Quality: Micro Allergen

Captured Particle Size: 1-3 Microns

Material: 0

Capacity: 0

MERV Rating: 11

SKU: P15CS.010099

MPR Rating: MPR 1000

GTIN/UPC:

Lead Time: 5 Business Day

MERV 11 Pleated Air Filter - Recommended for Pet Owners!

For superior air filtration and efficiency, MERV 11 pleated filters offer significantly higher particulate efficiency. They can capture airborne particles/allergens between 1 and 10 microns.

Dust & Lint
Pet Dander
Dust Mites
Pollen
Bacteria
Mold

MERV 11 pleated filters are an ideal upgrade from standard disposable panel filters.

Made:	Made in the USA
Change Frequency:	60-90 Days
Capacity:	Standard
Chemically Treated:	No
Rating:	U.L. Class 2

This filter is comparable to 3M Filtrete Ultra Allergen: Filtrete 1250

What is a MERV Rating?

MERV ratings let you know the efficiency and level of filtration that an air filter can handle under normal circumstances. The higher the MERV rating, the finer the particles are that are filtered our of the air in your home. Many air filter retailers use MERV or a similar rating to rate their air filters.

About MERV, MPR and FPR Rating

MERV Rating (Minimum Efficiency Reporting Value):

MERV Rating is the primary rating system used in the industry, both domestically and internationally. Established by the American Society of Heating, Refrigerating, and Air Conditioning Engineers, MERV rates a filter’s ability to capture and hold particles and pollutants.

MPR (Micro-Particle Performance Rating):

MPR Rating is a rating system developed by 3M. It rates the manufacturer’s Filtrete product line and their ability to capture airborne particles smaller than 1 micron.

FPR (Filter Performance Rating):

FPR Rating is a rating system developed by The Home Depot for brands sold through their stores, including Honeywell. It utilizes a color code and number scale (4 to 10) that closely resembles the MERV rating.

Overall rating: 4.8297873 / 5 from 47 reviews.

AI Generated Review Summary

Customers are highly satisfied with the MERV 11 Custom Single, praising its quality, perfect fit, and exceptional service. They also appreciate the fast and efficient delivery.

Summary topics

Filter Quality: 20%
Customer Service: 23%
Product Fit: 17%
Delivery Speed: 20%

Review topics: ["size","fit","quality","filters","delivery","service","order","ordering"].

Review highlights

"Filters are great quality and service is exceptional." — Sharleen P.
"Great filter and great shipping service" — Donald M.
"Best service and quality around!" — Patrick Z.

Reviews

Outstanding Quality & Reliable Service Every Time

"I’ve been ordering from this company for over two years now, and they’ve consistently delivered top‑tier quality. If you’re looking for custom or irregular sizes that big box stores never seem to carry, this is absolutely the place to go. Their materials are solid, the craftsmanship is dependable, and they’ve never once let me down. Shipping is always quick, and they pack every item with real care so it arrives in perfect condition. After multiple orders and zero complaints, I can confidently recommend them to anyone who values quality and reliability."

— Billy M. (5/5)

Quality Filters Delivered for Basically the Same Price as Retail Stores

"I'm not even sure if the Home Despot sells MERV 11 filters, but according to the website they have 'em (at least in my area) for just under $19 each. The guy who installed my FHA furnace made the opening slightly too small to fit a standard 16x25x1 filter, so I have to order custom fit filters. This is my second batch ordered from Factory Direct Filters, and I can't complain about anything. They're the right size (15. 5x26x1) and at a good MERV rate, not too dense and not too thin, and the price shipped is nothing more than pennies (literally and I don't say the word "literally" like some folks do). A great product, shipped, at a reasonable price. What's not to like?"

— Shawn H. (5/5)

Great Filter and pricing.

"Great filters."

— Patricia M. (5/5)

Lost shipment

"I have always liked the filters I get from you. So far my shipment was lost, you are sending out a replacement but so far I have not received anything."

— Robert F. (2/5)

Great filters!

"These filters are as good or better than store bought filters. And they are shipped directly to the house. What’s not to like?"

— Bryan C. (5/5)

A

"A"

— ANTONIO J. (5/5)

Right Fit

"This order was just short on the length. I plan to keep them but they do not fit like my previous orders."

— Patty G. (4/5)

MERV 11 custom single

"The custom size seems to fit well for our situation. We have used this replacement for several years. We have not been able to find this particular size, 10x10", in any part of our region."

— Kenneth B. (4/5)