Product Overview

The Filterbuy 21x21x5 Air Filter MERV 13 Optimal Smoke & Allergy Defense (1-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement for Rheem, Ruud, & Protech (Actual Size: 20.63 x 20.63 x 4.38) bridges reliable design and thoughtful design, well-suited for everyday needs. Designed with Aluminum, Plastic, Polypropylene, measuring 20.63"L x 20.63"W x 4.38"Th, weighing 3.8 Pounds. Notable features include 21x21x5 air and air filters, contributing to its practical character.

Key Features

• 21x21x5 air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 20.63" x 20.63" x 4.38")
• Protect your home or business from germs, bacteria, and more with MERV 13 synthetic media (comparable with MPR 1900 & FPR 10) that captures 98% of dust without restricting air flow
• Electrostatically charged media (made in the USA) with 11 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for optimal performance)
• Easy installation beverage board (recyclable) frames with dual wire backing outperform flimsy cardboard designs by improving durability, preventing warping, and resisting extreme temperatures
• Rheem / Ruud Filter Part Number (PD540018), Protech (540012, 540018, PD540012), Housing Part Numbers (RXFH-E21AM10, RXFH-E21AM13)

Why Choose the Filterbuy 21x21x5 Air Filter MERV 13 Optimal Smoke & Allergy Defense (1-Pack)

The Filterbuy 21x21x5 Air Filter MERV 13 Optimal Smoke & Allergy Defense (1-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement for Rheem, Ruud, & Protech (Actual Size: 20.63 x 20.63 x 4.38) delivers on three fronts: versatile build, 21x21x5 air, and long-term value. This combination makes it suited for serious furnace filters use.

Best For

For users centered on everyday needs, the Filterbuy 21x21x5 Air Filter MERV 13 Optimal Smoke & Allergy Defense (1-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement for Rheem, Ruud, & Protech (Actual Size: 20.63 x 20.63 x 4.38) delivers thoughtful design through versatile construction.

Quick Summary

The Filterbuy 21x21x5 Air Filter MERV 13 Optimal Smoke & Allergy Defense (1-Pack) is a Furnace Filters product by Filterbuy. Brand: Filterbuy. Material: Aluminum, Plastic, Polypropylene. Product Dimensions: 20.63"L x 20.63"W x 4.38"Th. MERV Rating: 13. Compatible Devices: Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump. Price: $148.48.

Product Specifications