13x21x1 Exact MERV 12 AC Furnace Filters

13x21x1 Exact MERV 12 AC Furnace Filters

Marsoni

M251S

$67.28

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

13x21x1 Exact MERV 12 AC Furnace FiltersActual Size: 13 x 21 x 3 4 (13 x 21 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores and other contaminants. Ideal for high efficiency air filtration and will help those with moderate allergies and asthma. Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 12 is equivalent to MPR 1500 1900 Made in the USA. Nordic Pure MERV 12

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I have experience with large working dog breeds, and I've got a mastiff lab mix puppy, who at 5 months weighs 50 pounds and is teething hard, and chews on everything. Most chew toys I've tried broke within a few minutes, but these have held up. I like that the ones I received are hollow, so I can put puppy kibbles inside them to keep the dog busy in her crate, and slow her eating so she doesn't scarf down her meals and get sick. The hole is small, but I feed small sized "taste of the Wild" brand kibbles, and they would pour out of Kong toys within seconds. I have recommended them to other puppy owners. My dog isn't an aggressive chewer, but for a teething puppy, these toys do seem to be ideal.

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Reviewed in the United States on May 9, 2022

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Jhojandra

Dallas, US

★★★★★ 3

Nice material but do not recommended for aggressive chewers

Color: Blue-Green-Orange, Color: Blue-Green-Orange

Why did you pick this product vs others?: The material is nice and easy to wash but definitely do not recommend for large breeds/ aggressive chewers. My big pup ripped one up within seconds of getting it. The ball has lasted!

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Reviewed in the United States on July 4, 2025

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Kindle Customer

Pawtucket, US

★★★★★ 5

Heavy duty dog toys

Color: Blue-Green-Orange

Excellent quality and size was moderate for a puppy that's 5 months old however she's a heavy chewer and they're absolutely are holding up beautifully definitely recommend the purchase

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Reviewed in the United States on December 7, 2025

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Shaun Lanier

Lexington, US

★★★★★ 4

Fun

Color: Blue-Green-Orange

Dog fun

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Reviewed in the United States on April 29, 2026