F-F-300B, FEDERAL SPECIFICATION: FILTER, AIR CONDITIONING: VISCOUS IMPINGEMENT AND DRY TYPES, CLEANABLE (28-MAY-1982) [S/S BY ASTM-F872]

F-F-300B, FEDERAL SPECIFICATION: FILTER, AIR CONDITIONING: VISCOUS IMPINGEMENT AND DRY TYPES, CLEANABLE (28-MAY-1982) [S/S BY ASTM-F872]., This specification covers cleanable, metallic, panel type, standard velocity air filters used in air conditioning, heating, and ventilating systems.