SQUARE ALUMINUM JOB MASTER Air & Furnace Filters For use on doors 1-3/8

For use on doors 1-3/8 to 1-3/4-inch

200 PSI WOG/ 125 PSI WSPStandard portNon-rising stem for limited-space operation

Scraper blade for removing congealed dirt

(3) 1/4" male NPT plugs

SQUARE ALUMINUM JOB MASTER Air & Furnace Filters For use on doors 1-3/8High tempered aluminum with a buffed finish. Deep graduations. Includes lumber scale with board feet equivalent, decimal equivalent table, metric conversion table, formula for squaring a foundation, volume and area formulas, wood screw gauge table, nail sizes, depth scale, 1 8" graduations front and back, plus 45, 60, and 30 angle markings. Body 24" x 2". Tongue 16" x 1 1 2".