20x20x4 Merv 7 Filters Case of 6

MERV 7 20x20x4 Case of 6 Filters Pictures are examples of the filters.





Pictures are examples of the filters.

Electrostatically Charged, 100% Synthetic Media Heavy-duty, Moisture Resistant Construction

The filtering material is made from a special pretested blend of cotton and polyester fibers. The media is bonded to a special galvanized steel, expanded metal support grid with a 95% open face area. The media and metal combination is designed to prevent sagging and collapse since they are bonded tightly to the frame, eliminating any air bypass.

The frame is a special diecut, solid Draft board with extra moisture resistance, designed to prevent collapse under extreme humidity conditions.

These Pleats are rated at 30-35% average atmospheric dust stop efficiency with a 90% (or greater) average synthetic dust weight arrestance when tested in accordance with ASHRAE 52-76 standard test method.





These filters can be used without modification in side-access filter housings or built-up filter banks. They offer better efficiency than conventional permanent or disposable flat filters. The Series 400 filters, when used as pre-filters, substantially extend the life of more expensive high-efficiency filters. They are the perfect filter for residential, commercial and industrial use.



As a general rule, the exact size of a filter is slightly smaller than the size on the label (nominal size) you order. This is because air filter industry has a loose set of standards by which filters are manufactured to a size that is actually smaller than the labeled size. This practice allows for the small variances in the way air handling equipment is manufactured.

Select your filter size or application to find compatible replacement filters. Email sales@cfsco.net if you cannot find the filter size, filtration system or replacement filter cartridges. If you need to purchase filters in different quantities please email us. Thank you Complete Filtration Services

Different Quantities Available Please Contact Us For Pricing and Availability

Thank You (252)752-3340

*****PLEASE READ ALL OF THE FOLLOWING INFORMATION*****

Thank you for your purchase We appreciate your business! Please keep in mind that all of our items have a normal lead time of 5-7 business days.

lease do not hesitate to contact us with any questions. Our business hours are Monday thru Friday 8:30am to 4:30pm (eastern standard time).

We answer all emails and return phone messages as quickly as possible. Thank you Complete Filtration Services sales@cfsco.net (252) 752-3340

Return Policy:

Please make sure that the item you are buying is what you need. Please ask any questions before you purchase. Please keep in mind that furnace filters have a nominal size (which is how they are listed) and an actual size, so if unsure please ask. Returns or exchanges are only allowed upto 7 days after delivery. Returns are only allowed as exchanges and the buyer is responsible for any additional charges and all shipping charges. So again, please ask any questions before you purchase. This return policy is enforced to protect the buyer and seller. We look forward to doing business with you. If SHIPPING INSURANCE is not purchased on an item that offers it we are not responsible for any lost or damaged products. Thank you CFS