PD540016 | 17.5x21x4.5 MERV13 Filter Pack of 4 | Rheem-Ruud

17.5x21x4.5 MERV13 Filter: PD540016 by Rheem-Ruud This 17.5x21x4.5 inch MERV13 filter from Rheem-Ruud is designed to capture a wide range of airborne particles, including dust, pollen, and mold spores. Its high MERV rating of 13 indicates its ability to remove up to 90% of particles in the air. This makes it an ideal choice for industrial and commercial applications where air quality is a concern. The filter is made of durable materials and is designed to last for up to 6 months. Shop our HVAC supply store now for the best prices and fast shipping on all your industrial supply needs!