Your Resource for IAQ Expertise

Get company news, product updates and more directly to your inbox.


Get in touch and our advisors will determine the right solution for you.

Call toll free at 1-866-436-6960 or email us:

  • This field is for validation purposes and should be left unchanged.

Side Access Polyseal

AAF’s Side Access Polyseal filter housing offers the convenience of servicing the filter from outside the air duct and is especially suited for installations involving limited headroom.

Dynamic Seal

The Polyseal filter track sealing system utilizes a high density Nylon piled gasket which is automatically positioned against the final filter as it is installed into the mounting track. The integrity of the seal is ensured because it is “air actuated.”

Rugged Construction

The Side Access Polyseal housing has exceptional structural strength. It utilizes 1-5/16" wide turned out flanges, welded construction, vertical supports and angle braces. The Polyseal housing is designed to operate at up to 6" WG negative or positive pressure.


Three housing departs are offered: 22-¼”, 34-¼”, and 42”. All housings are designed to enclose a 2” or 4” prefilter and final filter.

Access Doors

Access doors are hinged and have over-center draw type plated latches. The doors seal against the housing using a closed cell neoprene gasket. The standard Polyseal is furnished with two doors.

Key Features & Benefits

  • 5 depths and 96 sizes
  • Rugged doors
  • Structurally rated up to 6” positive pressure
  • 16-gauge galvanized steel
  • Welded construction
  • 1-5/16” flanges
  • Integral prefilters 2” or 4”
  • Internal bracing
  • Compact design
  • Factory assembled and easy to install

Request an Indoor Air Quality Assessment with BGE Today

Are you ready to build an indoor air environment that is customized based on your needs? Reach out to us to book a free air quality assessment with one of our advisors.




Fill out the form below and one of our Clean Air Experts will be in contact.

  • This field is for validation purposes and should be left unchanged.


Fill out the form below to sign up for a webinar. Our team will be in touch with you with an up-to-date schedule.

  • This field is for validation purposes and should be left unchanged.

Submit Your Resume

Contact Info

We would like to thank everyone for their application; however, only those being considered for an interview will be contacted.