Antimicrobial Single Window Envelope No. 10-1/2 for CMS-1500 Healthcare Forms are treated with an antimicrobial agent to guard against the growth of bacteria, algae, mold, mildew, fungus and odors. Envelopes are tinted for privacy. 24 lb. envelopes come in a bulk shipping container to reuse as letter-size file boxes for home or business use.
