Features: Part Number: PDC51V1 KAZDC-51. Applicable models: Suitable for V4600 V5100 VUL575 696. Note: Not suitable for VUL525, VUL545, VUL530, VUL565, V5200 series! Perfect for use in bedrooms to maintain humidity, in offices to combat dry air from air conditioning, in s rooms for a moist sleeping environment, and during winter heating to alleviate dryness. These cartridges feature advanced filtration technology for easy installation, ensuring optimal water and improved humidification without the need for tool. These cartridges caters to water types, making essential for various household needs. Enhances your humidifier's with our demineralization cartridges, specifically designed to efficiently remove minerals and impurities, white and extending the life of your humidifiers. Specifications: Part Number: PDC51V1 KAZDC-51 Component: about 7.7x7.29inch Applicable models: Suitable for V4600 V5100 VUL575 696. Note: Not suitable for VUL525, VUL545, VUL530, VUL565, V5200 series! Package Includes: 4pcs Demineralization Cartridge note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.