Envelopes › Green Imprinted Catalog Envelope for CMS/HCFA 1500 Image 1 of 2 Image 2 of 2 Green Imprinted Catalog Envelope for CMS/HCFA 1500 $265.00 Item #D36IGreen Border Catalog Envelope for CMS/HCFA 1500 Forms imprinted with your return address in black or blueSize: 9"x12.5"Right Window, Self Seal500 Envelopes Per Case Quantity: Add To Cart Added! Item #D36IGreen Border Catalog Envelope for CMS/HCFA 1500 Forms imprinted with your return address in black or blueSize: 9"x12.5"Right Window, Self Seal500 Envelopes Per Case