What Filter King does

Filter King LLC is a Miami-headquartered, US-based manufacturer of HVAC pleated air filters sold predominantly direct-to-consumer via its filterking.com e-commerce storefront, with a growing commercial channel. The company was founded in 2016 and operates four domestic manufacturing and distribution facilities, the most recent being a 44,000-square-foot Dallas, Texas hub opened in February 2026 as the third such site added in 13 months, positioning the company to reach approximately 85% of the US population with next-day shipping. The product portfolio centers on pleated air filters in standard thicknesses from 0.5" to 5", offered in MERV 8 (basic), MERV 11 (advanced), and MERV 13 (hospital-grade, capturing particles down to 0.3 microns) ratings, plus a MERV 8 carbon variant for odor/VOC removal, custom-cut filters for non-standard HVAC dimensions, and accessory products such as paperboard frames and laminated media rolls. Brand-specific replacement lines serve Amana, Trion Air Bear, Honeywell, Carrier, Trane, Lennox, and Aprilaire systems. The firm employs 51-100 people.

The business model combines one-time DTC sales with a subscription auto-delivery program offering a 5% discount and flexible 1- to 12-month replacement intervals, supplemented by a dedicated B2B portal for HVAC professionals, property managers, and commercial facilities with volume pricing up to 75% off. Commercial accounts drove a disclosed 180% revenue increase between 2024 and 2025, and the company also distributes via Amazon (4.5-star rating across 4,314 reviews) alongside its owned site. Aggregate customer signals include 10,000+ homeowners served and 23,703 combined Google and Amazon reviews averaging 4.5-4.6 stars. Go-to-market relies on content marketing and SEO around MERV ratings and filter sizing, peer-review trust signals, and Amazon marketplace placement, with a reseller API extending wholesale reach. Filter King's stated competitive position rests on Made-in-USA manufacturing, broad size coverage including custom dimensions, a 6- to 12-month premium filter lifespan option (5-inch depth), and fast shipping enabled by distributed production.

Name

Filter King

Legal name

Filter King LLC

Website

https://filterking.com

Company type

Private

Founded year

2026

Operating status

Operating

Headcount range

51–100 employees

Short description

Filter King is a Miami-based US manufacturer of pleated HVAC air filters (MERV 8, 11, 13, and carbon variants) sold direct-to-consumer through filterking.com and Amazon, with a growing B2B commercial channel serving HVAC professionals and property managers nationwide.

Ownership category

akta.pro rank

Product category

HVAC Air Filtration

NAICS

Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers (42373)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

HVAC Parts & Supplies Retail (Thermostats, Filters, Ducting) (CRAIADAI)

Keywords

• HVAC air filters
• Pleated air filters
• MERV rated filters
• Custom air filters
• Furnace filters

Headquarters

HQ city

Miami

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Direct Product Sales: One-time purchases of air filters through e-commerce website. Customers can buy individual filters or multi-packs. Volume discounts available with bulk orders saving up to 75%.
2. Subscription/Auto-Delivery: Recurring subscription model where customers receive filters automatically on a scheduled basis (monthly, 2-month, 3-month, 6-month, or 12-month intervals). Offers 5% discount on all subscription orders.
3. Commercial Accounts: B2B sales channel for commercial customers including HVAC professionals, property managers, and businesses. Drives significant revenue growth with 180% increase from commercial accounts between 2024-2025.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Filter King manufactures and sells pleated HVAC and furnace air filters for residential and commercial use, available in standard and custom sizes across MERV 8, 11, 13, and carbon-odor variants. Products are made in the USA at four manufacturing and distribution facilities and sold directly to consumers and commercial accounts via filterking.com, with auto-delivery subscriptions and bulk/wholesale options available.

Product overview

Filter King is a U.S. manufacturer of HVAC air filtration products offering a comprehensive portfolio centered on pleated air filters available in standard sizes (0.5", 1", 2", 4", 5" thickness) and custom-cut options. The core product lineup includes MERV 8 (basic filtration), MERV 11 (enhanced filtration for homes with pets/allergies), MERV 13 (superior protection for allergies/asthma), and MERV 8 Carbon Odor Eliminator filters. They also offer Freedom Filters (limited-edition 250th anniversary), custom air filters for non-standard sizes, bulk/wholesale options for commercial accounts, paperboard filter frames, and laminated media rolls. The company operates four manufacturing and fulfillment centers enabling next-day delivery to approximately 85% of the U.S. population. Brand-specific replacement filters are offered for Trion Air Bear and Amana systems, among other HVAC brands. The business model includes direct-to-consumer online sales with an auto-delivery subscription service offering 5% discounts.

Differentiator

Problem solved

Functional benefit

Brands

• Freedom Filters: Limited-edition 250th anniversary filters available through July 2026, celebrating USA 250th Anniversary

Products and services

• MERV 8 Air Filters Standard pleated air filters for HVAC and furnace systems targeting basic residential filtration needs in homes without specific allergy concerns. Removes up to 90% of common household particles.
• MERV 11 Air Filters Advanced pleated air filters for HVAC systems in homes with pets, kids, or mild allergies. Captures fine dust and smoke particles, removing up to 95% of common particles.
• MERV 13 Air Filters Superior hospital-grade pleated air filters for households with allergies, asthma, or immune sensitivities. Filters bacteria and virus carriers down to 0.3 microns and removes up to 98% of common particles.
• MERV 8 Carbon Odor Eliminator Air Filters Pleated air filter that combines MERV 8 standard filtration with an activated carbon layer to absorb smoke, cooking odors, pet smells, and VOCs, removing up to 90% of common particles plus odors.
• 5-Inch Depth Premium Filters Deep-pleated premium air filters with 5-inch depth, providing 40-50 square feet of filtration media and a 6-12 month replacement lifespan, nearly five times the surface area of standard 1-inch filters.
• Custom Air Filters Made-to-measure pleated air filters precision-cut to exact specifications for non-standard or unique HVAC system requirements that are not covered by standard sizes.
• Freedom Filters (Limited Edition) Limited-edition MERV 8 filters with special USA 250th Anniversary branding, available through July 2026.
• Amana Replacement Filters Replacement air filters compatible with Amana HVAC systems, available in MERV 8, 11, 13, and Carbon variants and matched to specific Amana model numbers including ADPF, AEPF, ARPF, ARUF, and ASPF series.
• Trion Air Bear Replacement Filters Replacement air filters compatible with Trion Air Bear systems, covering OEM part numbers such as 455602, 435790, 453000, 447380, 459202 and Superme models 1200, 1400, and 2000.
• Bulk / Wholesale Air Filters Volume purchasing program of pleated air filters for commercial accounts, property managers, and resellers, with tiered discounts up to 75% off compared with single-unit pricing.
• Paperboard Air Filter Frames Replacement paperboard frames for media air cleaners used in whole-house air filtration systems.
• Laminated Air Filter Media Rolls Laminated air filter media supplied on rolls for custom filter fabrication and commercial air-filter assembly applications.
• Auto Delivery Subscription Subscription auto-delivery service that ships air filters to customers on a schedule of their choice (every 1, 2, 3, 6, or 12 months), with a 5% discount and the ability to change or cancel anytime.
• Commercial Accounts Program Dedicated commercial program for HVAC professionals, property managers, and business customers offering bulk pricing, recurring delivery, and dedicated support for multi-unit filter procurement.
• Air Filter Reseller API Programmatic API for resellers to access Filter King's air filter inventory, pricing, and ordering capabilities for integration into their own platforms or systems.

Quantifiable outcome

• Up to 98% particle capture with MERV 13 filters including bacteria and virus carriers down to 0.3 microns
• +4 more outcomes

Named customers2 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators7 records

Recent moves5 records

Expansion highlights6 records

Direct peers

• Koch Filter: Long-standing US manufacturer and distributor of commercial and industrial air filters. Comparable to Filter King's commercial accounts and custom manufacturing capability.
• Nordic Pure: DTC HVAC air filter brand selling pleated MERV-rated filters in standard and custom sizes via subscription. Directly overlaps with Filter King on product, channel, and customer.
• FilterBuy: Direct competitor DTC HVAC filter brand offering standard and custom sizes with subscription delivery. Closest comparable by product mix, GTM motion, and target customer.
• AprilAire: Whole-house air filtration brand offering media cabinets and replacement filters (including the 201/213/401 series that Filter King explicitly targets). Competes for both residential and commercial IAQ filtration dollars.
• Aerostar: Consumer HVAC replacement filter brand (a Filtration Group company) selling MERV 8–13 pleated filters via online retail. Closely comparable on product specs and DTC channel.
• Trion (Air Bear): OEM of the Air Bear whole-house filtration systems — Filter King explicitly sells replacement filters for these systems — making Trion both a compatible-partner and competitor for end-customer filtration spend.

Broad incumbents

• Filtration Group: Large diversified filtration manufacturer whose consumer brands (Aerostar, Filtrair, etc.) directly compete in HVAC replacement filters, while its B2B portfolio competes in Filter King's commercial channel.
• 3M (Filtrete): Filtrete is the dominant branded HVAC air filter line in US retail, sold through big-box and online channels. Sets the de facto benchmark for Filter King's DTC offering on pricing, MERV tiers, and shelf presence.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/yourfilterking
• YouTubeyoutube.com/@FilterKingOfficial
• LinkedInlinkedin.com/company/filter-king
• Instagraminstagram.com/filterkingok

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Filter King