Product Overview

Designed thoughtfully for gift giving, the Filterbuy 20x21x5 Air Filter MERV 13 Optimal Smoke & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement for Lennox and Electro-Air (Actual Size: 19.88 x 20.50 x 4.38) pairs practical build with consistent long-term value. Designed with Aluminum, Plastic, Polypropylene, measuring 20.5"L x 19.88"W x 4.38"Th, weighing 15 Pounds. Notable features include 20x21x5 air and air filters, contributing to its thoughtfully designed character.

Key Features

• 20x21x5 air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 19.88" x 20.50" 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
• Lennox Filter Part Number (X8790), Housing Part Number (PCO14-23), Electro-Air (F825-0337 / F8110321, SST 16C28S-010)

Why Choose the Filterbuy 20x21x5 Air Filter MERV 13 Optimal Smoke & Allergy Defense (4-Pack)

When evaluating furnace filters options, the Filterbuy 20x21x5 Air Filter MERV 13 Optimal Smoke & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement for Lennox and Electro-Air (Actual Size: 19.88 x 20.50 x 4.38) stands out for its well-made construction and 20x21x5 air, both of which contribute to reliable performance.

Best For

Geared toward gift giving, the Filterbuy 20x21x5 Air Filter MERV 13 Optimal Smoke & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement for Lennox and Electro-Air (Actual Size: 19.88 x 20.50 x 4.38) brings well-made build quality and consistent long-term value.

Quick Summary

The Filterbuy 20x21x5 Air Filter MERV 13 Optimal Smoke & Allergy Defense (4-Pack) is a Furnace Filters product by Filterbuy. Brand: Filterbuy. Material: Aluminum, Plastic, Polypropylene. Product Dimensions: 20.5"L x 19.88"W x 4.38"Th. MERV Rating: 13. Compatible Devices: Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump. Price: $328.28.

Product Specifications