The Trane FLRQB5DN17M11 is a high-performance 5" QwikBox air filter engineered for superior indoor air quality. With a MERV 11 rating, this filter captures a wide range of airborne particles including dust, pollen, and mold spores. Designed with dimensions of 16.7" x 20", this pack of 2 filters offers extended life and efficiency for Trane QwikBox systems and compatible air handlers. Key Features MERV 11 rating for effective particle filtration 5-inch depth provides larger surface area for longer life QwikBox design ensures easy slide-in replacement Helps reduce allergens, dust, and odors Pack of 2 filters included for added convenience Specifications Part Number: FLRQB5DN17M11 Filter Dimensions: 16.7" x 20" x 5" Filtration Efficiency: MERV 11 Filter Type: QwikBox air filter Quantity: 2 filters per pack Compatible Models Fits Trane and American Standard QwikBox systems and air handlers designed to accommodate 5? filters (confirm dimensions: 16.7" x 20"). Why Choose This Item This genuine Trane QwikBox filter provides high-efficiency filtration that improves air quality while protecting your HVAC system. Its MERV 11 performance is ideal for homes needing advanced air purification without reducing airflow. The 5? design allows for extended service life?reducing maintenance and operating costs.