Skip to content
Free Local Pickup ● Ship to Your Hometown Store
Pro & Contractor Accounts ● Apply for Net Terms
100,000+ Products ● Trusted American Hardware Brands
FAQ Shipping & Returns Order Lookup Contact Account
NaturalAire 12 in. W X 36 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter
NaturalAire 12 in. W X 36 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter
NaturalAire 12 in. W X 36 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter
NaturalAire 12 in. W X 36 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter
NaturalAire 12 in. W X 36 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter

NaturalAire 12 in. W X 36 in. H X 1 in. Synthetic 8 MERV Pleated Air Filter

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Meet the NaturalAire 12x36x1 Synthetic Pleated Air Filter — a dependable, mid-range filtration solution designed to elevate indoor air quality in homes and light commercial spaces.…

Naturalaire MPN 84858.011236 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $12.99. Our online price is $13.99.
$13.99
Includes free shipping on orders over $75 · $8.99 standard below
Delivery in as little as 1–4 business days Order within — for same-day shipping
Cases of 12 · Order in multiples of 12

Sold by the Case · Save 15%

Take $25.20 off your case at checkout

Case of 12 · List Price $167.88
15% OFF with code at checkout $142.68
Use Code at Checkout

This product is packed and shipped from our distribution network as a complete case of 12. Apply casediscount at checkout to take 15% off your order.

Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Meet the NaturalAire 12x36x1 Synthetic Pleated Air Filter — a dependable, mid-range filtration solution designed to elevate indoor air quality in homes and light commercial spaces. Built for balance, this filter delivers solid particle capture without overloading your HVAC system.

  • Width: 12 in • Height: 36 in • Thickness: 1 in (actual size: 11-7/8 x 35-7/8 x 3/4)
  • Media: Synthetic, pleated for increased surface area
  • Frame: Beverage board with metal mesh support for durability
  • Electrostatic: No (non-electrostatic mechanical filtration)
  • Filter Class: II • MERV/MPR Rating: 8
  • Single filter per package
  • Filters bacteria, pollen, mold spores, and viruses; does not filter smoke

What this filter protects you from

Designed to improve everyday indoor air, this NaturalAire filter targets a range of common particles. It captures:

  • Bacteria, helping reduce microbial load in treated air
  • Pollen and dust/lint, aiding allergy and irritant relief
  • Mold spores, contributing to a healthier indoor environment
  • Viruses present in the air, where feasible through mechanical filtration

Note: It is not formulated to remove smoke from the air.

Why choose this 12x36x1 filter

  • Pleated synthetic media increases dirt-holding capacity, extending filtration performance within standard HVAC airflow constraints
  • Sturdy beverage-board frame paired with a metal mesh provides dependable support in busy return ducts
  • Non-electrostatic design relies on mechanical filtration to capture particles efficiently
  • MERV 8 rating offers practical filtration for typical household needs without a high-pressure drop

Designed for practical, real-world use

Ideal for homes and small spaces using standard 12x36 filter slots, this NaturalAire filter supports everyday air quality improvements without the complexity of high-level filtration. Its balanced performance suits households seeking noticeable reductions in dust and pollen while maintaining comfortable airflow and energy efficiency.

Included: 1 filter per package, ready to slot into compatible HVAC systems that specify 12x36x1 sizing. With precise dimensions and a robust build, it’s a straightforward choice for reliable, consistent filtration that aligns with real-world needs.

The Details Specifications

Brand Naturalaire
SKU 4373494
UPC 031949145514
Unit EA
Case Pack Quantity 12 per case
Retail Unit Quantity 12
Unit of Measure 0 0
Dimensions (L × W × H) 37 × 11 × 25
Weight 9 lbs
Cubic Feet 0.47438 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Ask our counter. Or theirs.

Most hardware stores can do more than you think. If we can't help you, the folks down the street probably can — just ask at the counter.

What we offer
Free Local Pickup Ship to your hometown store
Pro & Gov Accounts Net terms · tax-exempt
Ships Nationwide From our distribution network
Independent Network Real hardware stores
$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
Their Counter
Try local first · we'll wait

The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

Find a local store →
Mon–Fri 6–5 PST
Independent hardware retailer? Join the network →
About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a co-op banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare