Heavy Duty 20" X 25" X 1" Aluminum Mesh Washable Air Filter

Heavy Duty 20" X 25" X 1" Aluminum Mesh Washable Air Filter

(actual size 19.5" X 24.5" X .78")

This sturdy air filter is designed for applications where a sturdy permanent air filter is recommended, such as schools, industrial and commercial buildings, and hospitals. Constructed with seven layers of expanded aluminum mesh and surrounded by a heavy aluminum frame, this sturdy air filter will get the job done.

FEATURES:

• Resistance to rust and corrosion due to aluminum make-up
• Seven crossed layers of corrugated aluminum mesh
• Long life expectancy and can be cleaned many times without losing efficiency
• UL Approved for Air and has surpassed the Federal Specification ASTM F872 required by all government contracts

CLEANING:
Regardless of dust conditions, filters shall be quickly and effectively cleaned with steam or hot water applied with a pressure hose.  For best results, do not use a strong Alkali Solution when cleaning any Aluminum Filter.  Do not soak any aluminum filters in strong alkali. 

CONSTRUCTION:
The filter is processed from sheet Aluminum, no less than .025 in thickness expanded to .031 strand.  The material is expanded in a special pattern of various densities of 3/32 x 5/16 x 1. The filtering element consists of not less than seven layers of this media, and assembled so that each layer shall lay at right angles with the preceding layer. Each layer of media is corrugated from 1/4 to 3/8 to provide maximum dust holding capacity. The filtering element is framed in a formed aluminum channel, not less than .037 thickness.  The frame is smooth and free of projections. Holes shall be punched on one side of frame to facilitate drainage after cleaning.  Filter shall retain 571 grams of dust per 2.25 sq. feet of filter area.  Resistance when clean is .077 wg at 350 FPM air velocity.