PD540042 | 21x21x5 MERV8 Media Filter | Rheem-Ruud

21x21x5 MERV8 Media Filter (PD540042) by Rheem-RuudThis 21x21x5 MERV8 media filter from Rheem-Ruud effectively captures airborne particles, including dust, pollen, and mold spores, to improve indoor air quality. Its durable construction ensures long-lasting performance, while its MERV8 rating makes it suitable for various filtration applications.Upgrade your air filtration system with this high-quality filter and breathe cleaner, healthier air. Shop our HVAC supply store for the best prices and fast shipping on HVAC filters and other maintenance essentials!