This OEM replacement filter kit is designed for select Carrier 40MAQB wall-mounted mini split indoor units. Replacing your filters on schedule helps maintain airflow, cooling performance, and indoor air quality—keeping your system running efficiently throughout the year. Guaranteed Compatible Carrier Indoor Units 40MAQB24B, 40MAQB30B, 40MAQB36B, 40MAQB24B--302, 40MAQB24B--321, 40MAQB24B--331, 40MAQB30B--302, 40MAQB30B--321, 40MAQB30B--331, 40MAQB36B--301, 40MAQB36B--302, 40MAQB36B--321, and 40MAQB36B--331. Large Washable Screen Filter Dimensions: 17-10/16" x 16-1/4" Maintenance & Care Vacuum the screen filters every two weeks using a soft-bristle brush attachment to remove dust and debris. For homes with pets, smoke, or heavy use, gently wash filters with mild soapy water as needed. Allow filters to dry completely out of direct sunlight before reinstalling. ⚠️ Note: Do not operate your system without filters installed. Consider keeping a spare set to rotate during cleaning. Replacement Guidance Even washable filters lose efficiency over time. For best airflow and system performance, replace every 12 to 24 months depending on your environment and usage. Optional Activated Carbon Freshness Filter This kit includes an optional carbon insert designed to fit inside your screen filter. The activated carbon helps neutralize odors and VOCs, enhancing your system’s ability to deliver clean, fresh air. Filter Dimensions: 8.4" x 2" Maintenance & Care: Do not wash. Vacuum gently every two weeks. Replace every 6 months for optimal odor absorption.
