Envelopes › Green Envelopes for CMS/HCFA 1500 Image 1 of 2 Image 2 of 2 Green Envelopes for CMS/HCFA 1500 $121.25 Item #D36Green Border Envelopes for CMS/HCFA 1500 Forms Size: 9"x12.5"Right Window500 Envelopes Per CaseSelf Seal Quantity: Add To Cart Added! Item #D36Green Border Envelopes for CMS/HCFA 1500 Forms Size: 9"x12.5"Right Window500 Envelopes Per CaseSelf Seal