Envelopes for CMS-1500 and UB-04 Insurance Claim Forms
#10 1/2 (9-1/2" x
4-1/2") single-window envelope show the address when insurance claim
form is tri-folded.
Jumbo (9" x 12-1/2")
single-window envelope helps keep folded insurance claim forms from
jamming in some insurance company scanners, reducing potential
reimbursement delays.