The HK Series Aluminum Foil Filter is an impingement type panel filter designed for use in residential, commercial and industrial HVAC applications to remove large airborne particulate and coolant mist from the air stream. Popular applications include outside air intake ducts, rooftop economizer hoods and air handling units. It is an ideal solution for any HVAC system that desires a washable and durable pre-filter with low resistance to airflow.
The HK Series uses a metal frame to enclose the media pack consisting of multiple layers of corrugated aluminum foil and expanded metal assembled in a criss-cross fashion for strength. The pack is then placed between two layers of expanded metal and is made to fit firmly inside the frame giving the HK Series filter its exceptional strength and durability. The frame is made with mitered corners and is secured with pop-rivet(s). The frame has drain holes in three corners.
Filter Cleaning and Coating
1. To clean a dirty filter, rinse it with a moderate-to-heavy stream of warm water. High-powered steam cleaning or chemical dips are unnecessary and not recommended.
2. The HK Series filter is not supplied from the factory with filter adhesive coating. If desired, it may be sprayed before installation with Filter Coat, a water soluble adhesive and detergent. Metal Air Filters does not sell Filter Coat nor any adhesive.