COMMERCIAL HVAC FILTER SUPPLY
Commercial filters for your facility. Find the right family by size, depth and efficiency. Guardian Facility Supply is the canonical catalog and purchasing path; Guardian Filter Service coordinates programs, inventories and delivery reviews.
THE GUARDIAN EXPERIENCE 162 organized size families Actual dimensions before purchase
SHOP BY MERV
Start with the required efficiency. MERV rating does not replace equipment, airflow or pressure-drop review.
MERV 8 Commercial filters General commercial filtration and prefilter applications.
Explore options ↘ MERV 10 Commercial filters Intermediate-efficiency commercial applications.
Explore options ↘ MERV 11 Commercial filters Higher-efficiency commercial applications.
Explore options ↘ MERV 13 Commercial filters Enhanced particle-capture applications, subject to equipment review.
Explore options ↘ SHOP BY DEPTH
Commercial nominal depths. Nominal and actual dimensions are not the same. Confirm the equipment label or filter schedule before ordering.
COMMERCIAL SIZE FINDER
Nominal sizes for fast filtering. Every product must confirm actual dimensions, efficiency, selling unit, availability and delivery treatment before payment.
MERVAll MERV 8 MERV 10 MERV 11 MERV 13 Nominal depthAll 1″ 2″ 4″ Find a size
6 × 14 × 1 6 × 14 × 1a 6 × 30 × 1 8 × 8 × 1a 8 × 12 × 1 8 × 14 × 1a 8 × 24 × 1a 8 × 30 × 1 9 × 11 × 1a 9 × 11.38 × 1a 10 × 10 × 1 10 × 10 × 2 10 × 12 × 1 10 × 14 × 1 10 × 20 × 1 10 × 30 × 1n 10 × 36 × 1 12 × 12 × 1 12 × 14 × 1 12 × 18 × 1a 12 × 18 × 1 12 × 20 × 1 12 × 24 × 1 12 × 24 × 2 12 × 36 × 1 13 × 13 × 1 13 × 20 × 1a 13 × 21 × 1a 13 × 21.5 × 1a 13 × 25 × 1 14 × 14 × 1 14 × 14 × 2 14 × 16 × 1 14 × 18 × 1 14 × 18 × 2 14 × 20 × 1 14 × 20 × 2 14 × 21 × 1 14 × 22 × 1 14 × 24 × 1 14 × 25 × 1 14 × 25 × 2 14 × 30 × 1 15 × 15 × 1a 15 × 20 × 1 15 × 24 × 1 16 × 16 × 1 16 × 16 × 2 16 × 19 × 1 16 × 20 × 1 16 × 20 × 2 16 × 20 × 4 16 × 20 × 5 16 × 21 × 1a 16 × 22 × 1a 16 × 23 × 1 16 × 24 × 1 16 × 24 × 2 16 × 24 × 4 16 × 25 × 0.5 16 × 25 × 1 16 × 25 × 2 16 × 25 × 4 16 × 25 × 5 16 × 30 × 1 16 × 30 × 2 16 × 36 × 1 17.5 × 20 × 1a 17.5 × 21 × 1a 17.5 × 22 × 1a 17 × 10 × 2 17 × 17 × 1a 17 × 19 × 1a 17 × 20 × 1 17 × 21 × 1a 17 × 22 × 1 18 × 18 × 1 18 × 18 × 2 18 × 18 × 4 18 × 20 × 1 18 × 20 × 2 18 × 21 × 1 18 × 22 × 1 18 × 24 × 1 18 × 24 × 2 18 × 25 × 1 18 × 30 × 1 18 × 36 × 1 18 × 36 × 1a 19.5 × 21 × 1a 19 × 19 × 1a 19 × 20 × 1a 19 × 20 × 5 19 × 21 × 1 19 × 22 × 1a 19 × 23 × 1a 19 × 25 × 1 19.25 × 23.25 × 1a 19 × 26 × 1 19 × 27 × 1a 19.88 × 21.5 × 1a 20 × 20 × 1 20 × 20 × 2 20 × 20 × 4 20 × 20 × 5 20 × 21 × 1a 20 × 21.5 × 1a 20 × 22 × 1 20 × 22 × 2 20 × 23 × 1 20 × 23 × 1a 20 × 24 × 1 20 × 24 × 2 20 × 24 × 4 20 × 25 × 1 20 × 25 × 2 20 × 25 × 4 20 × 25 × 5 20 × 26 × 1a 20 × 30 × 1 20 × 30 × 2 20 × 35 × 2 20 × 36 × 1 20 × 40 × 1 21.5 × 23.25 × 1a 21.5 × 24 × 1a 21 × 21 × 1a 21 × 21 × 1 21 × 22 × 1 21 × 23 × 1a 21 × 24 × 1a 22 × 22 × 1a 22 × 22 × 1 22 × 23 × 1a 22 × 23.5 × 1a 22 × 24 × 1a 22 × 24 × 1 22 × 37 × 2 23 × 23 × 1a 24 × 24 × 1 24 × 24 × 2n 24 × 24 × 4n 24 × 30 × 0.5 24 × 30 × 1 24 × 30 × 2 24 × 36 × 1a 24 × 36 × 1 24 × 40 × 1 25 × 25 × 1 25 × 25 × 2 25 × 30 × 1 25 × 32 × 1a 25 × 32 × 1 25 × 37 × 4a 28 × 30 × 1 28 × 30 × 2 30 × 30 × 1 30 × 30 × 2 30 × 30 × 4 30 × 32 × 2 30 × 36 × 1a 30 × 36 × 2
FILTER SELECTION Choose MERV, depth and size Continue to Guardian Facility Supply for verified products. If delivery requires review, Guardian will preserve the order details and return a clear delivered price before payment.
Get My Best Delivery Option ↗ GUARDIAN DELIVERY REVIEW
Reviewed delivery, never a dead end. Filters can be lightweight but expensive to ship because of carton size. When an automatic rate is not dependable, Guardian reviews consolidation, destination and the appropriate delivery method, then sends a secure Shopify invoice with a clear delivered price before payment.
BEFORE YOU BUY
Protect the equipment and the budget. 01 Confirm nominal and actual size. Filters sharing a nominal size can differ in actual dimensions.
02 Validate MERV and pressure drop. Higher efficiency may not suit every fan, rack or operating condition.
03 Buy the verified case pack. Case quantity will be SKU-specific and shown before payment.
Already have a filter schedule? Send sizes, MERV, depth and quantities by location. Guardian will review the request before quoting.
Send a case request ↗ 