21x21x4.5 AIRx ALLERGY Rheem/RuudRXHF-E21AM10 Replacement Air Filter - MERV 11 (actual dimensions 20-3/4" X 20-3/4" X 4-3/8") - Rated MERV 11
Replaces media filters used in Rheem / Ruud model RXHF-E21AM10 21" Air Handler Media Air Cleaner Cabinets. Replaces Protech 540012, will also replace 540042, PD540042.
NOTE: This filter is not manufacturered by Rheem or Ruud.
These deep-pleated filters are manufactured to fit in Rheem and Ruud Media Exact Fit Air Cleaners. Expect comparable quality of construction at a value price!! The OEM filters are typically rated at MERV 10 - but these filters are rated at MERV 11.
- Moisture resistant frame remains sturdy even in high humidity
- Rust resistant galvanized wire downstream gives the filter rigidity and holds media in place after installation
- Built-in support fingers hold pleats in place and allow for maximum dust holding