Filter Hut 21x28x5 Rheem/Ruud (PD540013) replacement air filters are specifically designed to substitue for the original manufacturer Rheem/Ruud 21x28x5 air filters. Filter Hut filters are MERV tested to ASHRAE 52.2 test grades ensuring that our air filters will function as good or better than the OEM part number (PD540013) filter. Our air filters also come in Odor Ban odor eliminating carbon material. *OEM names are used for air filter substitution identification purposes only.
- 21 x 28 x 5 nominal size.
- 20-3/4 x 27-3/4 x 4-3/8 actual size.
- Replaces Rheem/Ruud brand 21x28x5 part number: PD540013.
- Quality Filters Envaero brand.
- Specifically designed to substitute for the OEM filter.
- Preassembled in frame for ease of installation. (No need for extra combs, end-caps, etc.)
MERV graded to ASHRAE ratings.
- Option of Odor Ban odor eliminating carbon-inlayed properties.
- 2 filters to a case.