Health Form Security Envelope, #10 1/2, 4 1/2 X 9 1/2, White, 500/box
Designed for Medicare Form CMS-1500 and other health insurance claim forms. Features security tint to preserve privacy. Treated with an antimicrobial agent to protect the envelope from the growth of bacteria, mold, mildew, fungus and odors. This product was made from wood sourced from a certified managed forest. Envelope/Mailer Type: Financial/Legal; Envelope Size: 4 1/2 x 9 1/2; Closure: Gummed; Trade Size: #10 1/2.