NO FRAMES ARE INCLUDED. YOUR EXISTING WHITE INSERT FRAMES MUST BE INSTALLED WITH THESE FILTERS. DIMENSIONS FOR FILTER MEDIA: 8.3 INCH X 1.9 INCH X 0.2 INCH (21 X 4.7 X 0.5 CM). WHEN REPLACING, YOU ONLY NEED TO REMOVE THE FILTER ELEMENT IN THE OLD FRAME AND REPLACE IT WITH THE NEW FILTER ELEMENT. REPLACEMENT PROCESS IS QUICK AND EASY. THE OLD FILTER ELEMENT IS RELATIVELY THIN; OUR NEW VERSION IS THICKER, DESIGNED FOR UPGRADED PERFORMANCE WHILE MAINTAINING COMPATIBILITY. SIMPLY REPLACE THE FILTER ELEMENT INSIDE. 100% GUARANTEED COMPATIBLE REPLACEMENT FOR MITSUBISHI ELECTRIC MAC-2330FT-E AND MAC-3000FT-E FILTERS. THE UPGRADED FILTER MAINTAINS FULL COMPATIBILITY AND ALLOWS DIRECT REPLACEMENT OF THE FILTER ELEMENT. INCREASED DISSOLVING ENZYME LAYER ENHANCES FILTRATION EFFICIENCY AND BETTER MATCHES THE SIZE OF THE FILTER FRAME. BLACK CARBON FILTER: UTILIZES CARBON ADHESION TECHNOLOGY THAT PLAYS A KEY ROLE IN AIR FILTRATION, HELPING TO REDUCE AIR ODORS AND CAPTURE HARMFUL SUBSTANCES FROM INDOOR AIR. EXTRA LONG LIFE: BLUE FILTER COMBINED WITH ACTIVATED CARBON STICK DESIGN FOR EXTENDED DURABILITY. THE BLUE FILTER IS FORMED THROUGH HIGH-TEMPERATURE OXIDATION. DISSOLVING ENZYMES ARE SECURELY BONDED TO THE FIBER LAYER TO PREVENT SHEDDING, MAINTAINING EFFECTIVE PERFORMANCE OVER TIME. RECOMMENDED REPLACEMENT EVERY SIX MONTHS. THE IONIC STICKY CARBON TECHNOLOGY PROVIDES LONG-LASTING DEODORIZING CAPACITY AND IMPROVED FILTRATION COMPARED TO TRADITIONAL FILTERS WITH LARGE PORES AND LOWER EFFICIENCY. SET INCLUDES: 4 LYTIC ENZYME FILTERS AND 4 ACTIVATED CARBON FILTERS. HIGH-DENSITY SEAMLESS BELT DESIGN WITH DISSOLVING ENZYMES. BLUE FILTER COMPOSED OF DISSOLVING ENZYMES AND A PURE LAYER, PRODUCED BY OXIDATION IONS.