KODAK EKTACOLOR Chemicals for Process RA-4 in Continuous and Roller-Transport Processors KODAK EKTACOLOR Chemicals for Process RA-4 are designed for processing all photographic papers, including KODAK ROYAL Digital Paper, KODAK EKTACOLOR EDGE Paper, KODAK PROFESSIONAL ENDURA Papers and Display Materials, and many compatible print materials from other manufacturers. KODAK EKTACOLOR Chemicals for Process RA-4 offer you fast access time, low replenishment rates, and lower water usage for consistent, repeatable print quality. Youll find a variety of choices to match your processor type and volume. With sufficient utilization, you can even regenerate your developer and bleach-fix.