Quality Park Claim Form #10 1/2 Envelopes, 1 Window, CMS-1500, Privacy Security Tint, 4-1/2 x 9-1/2 Inches, Gummed, 24 lb White, 500/Box (QUA21432-A)
No. 10 1/2 envelopes are designed for use with Insurance Form CMS-1500 and similar forms. The 1" x 4-1/2" window positioned 4-1/4" from the left and 19/16" from the bottom of the envelope. Inside security tint offers more privacy. 24 lb.