--- product_id: 57046177 title: "Filterbuy 21x27x5 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Trane Perfect Fit & American Standard (Actual Size: 20.56 x 26.13 x 4.97)" brand: "filterbuy" price: "$663.38" currency: USD in_stock: true reviews_count: 13 category: "Filterbuy" url: https://www.desertcart.us/products/57046177-filterbuy-21x27x5-air-filter-merv-8-essential-dust-and-allergy store_origin: US region: United States of America --- # Precise 20.56x26.13x4.97 in fit Durable recyclable beverage board frame MERV 8 blocks 90% dust & allergens Filterbuy 21x27x5 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Trane Perfect Fit & American Standard (Actual Size: 20.56 x 26.13 x 4.97) **Brand:** filterbuy **Price:** $663.38 **Availability:** ✅ In Stock ## Summary > 🛠️ Upgrade your air game—because your home deserves the best defense! ## Quick Answers - **What is this?** Filterbuy 21x27x5 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Trane Perfect Fit & American Standard (Actual Size: 20.56 x 26.13 x 4.97) by filterbuy - **How much does it cost?** $663.38 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/57046177-filterbuy-21x27x5-air-filter-merv-8-essential-dust-and-allergy) ## Best For - filterbuy enthusiasts ## Why This Product - Trusted filterbuy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Eco-Smart Durability:** Recyclable beverage board frame with dual wire backing resists warping and extreme temps for reliable performance. - • **Effortless Installation:** Lightweight, sturdy design makes replacing your whole-house filter a quick, no-fuss upgrade. - • **Perfect Fit, Zero Hassle:** Engineered for Trane Perfect Fit & American Standard models—no more guesswork or wasted time. - • **Breathe Cleaner, Live Better:** MERV 8 synthetic media captures 90% of airborne irritants, supporting your healthy, allergy-free lifestyle. - • **Built to Last, Designed to Perform:** Electrostatically charged pleats trap microscopic particles and last 3x longer than fiberglass filters. ## Overview Filterbuy’s 21x27x5 MERV 8 air filters deliver professional-grade dust and allergy defense with a precise fit for Trane and American Standard HVAC systems. Featuring electrostatically charged synthetic media and a durable recyclable frame, these pleated filters trap 90% of airborne particles while lasting three times longer than standard fiberglass models. Easy to install and built to withstand extreme conditions, they ensure cleaner air and enhanced system efficiency for a healthier home environment. ## Description Filterbuy 21x27x5 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Trane Perfect Fit & American Standard (Actual Size: 20.56 x 26.13 x 4.97) - desertcart.com Review: Good quality and price - Good: Sturdy and decent quality. I've seen name-brand filters, fresh out of the package, with a full third of the filter material pleats crushed together, requiring a fair amount of time to work loose and massage into shape and re-glue to make them usable. I have yet to see one of these that needed more than pushing a couple of cardboard separators back into place before installation. Fits my furnace where some other brands of the same stated size didn't. Decent price. Bad: Nothing significant. Five stars. Review: Good replacement. - They fit fine and seem to work well. ## Features - WHOLE HOUSE REPLACEMENT: 21x27x5 air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 20.56" x 26.13" x 4.97") - MERV 8 PERFORMANCE: Protect your home or business from pollen, lint, mold, and more with MERV 8 synthetic media (comparable with MPR 700 & FPR 5) that captures 90% of dust without restricting air flow - LONG-LASTING FILTRATION: Electrostatically charged media (made in the USA) with 8 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for optimal performance) - SUPERIOR CONSTRUCTION: Easy installation beverage board (recyclable) frames with dual wire backing outperform flimsy cardboard designs by improving durability, preventing warping, and resisting extreme temperatures - COMPATIBLE MODELS: Trane Perfect Fit (BAYFTFR21M), American Standard (FLR06070) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00O5KAZCO | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #215 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #16 in Furnace Filters | | Brand Name | Filterbuy | | Color | Silver | | Compatible Device | Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump | | Customer Reviews | 4.6 4.6 out of 5 stars (19,360) | | Date First Available | December 17, 2016 | | Included Components | Air Filters | | Is Discontinued By Manufacturer | No | | Item Weight | 7.5 pounds | | Item model number | TRF21x27x5M8pk2 | | Manufacturer Warranty | Parts | | Material Type | Aluminum, Plastic, Polypropylene | | Model Info | TRF21x27x5M8pk2 | | Part Number | TRF21x27x5M8pk2 | | Product Dimensions | 20.56 x 26.13 x 4.97 inches | | Special Features | Dust Collection, Easy to Install, Removable | ## Product Details - **Air Filter Construction:** Pleated - **Brand:** Filterbuy - **Compatible Devices:** Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump - **Item Weight:** 7.5 Pounds - **MERV Rating:** 8 - **Material:** Aluminum, Plastic, Polypropylene - **Max Temperature:** 200 Degrees Fahrenheit - **Number of Items:** 1 - **Product Dimensions:** 26.13"L x 20.56"W x 4.97"Th - **UPC:** 717267200349 ## Images ![Filterbuy 21x27x5 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Trane Perfect Fit & American Standard (Actual Size: 20.56 x 26.13 x 4.97) - Image 1](https://m.media-amazon.com/images/I/71FZKP-hdfL.jpg) ## Questions & Answers **Q: Why should I change my air filter?** A: To maintain a healthy lifestyle, as breathing dirty air can put you at risk to develop asthma, allergies, and other respiratory ailments. Plus, old filters can cause system defects which may lead to unwanted expenses via energy costs and repairs. **Q: When should I change my air filter?** A: We generally recommend replacing your filter every 90 days to keep your system running efficiently and air clean. But this is subject to change based on filter size and variable factors for pet owners, allergy sufferers, homes with children, etc. **Q: Will these air filters fit my system?** A: Most of our filters are universally compatible and will work with any furnace, air conditioner, heat pump, or HVAC system as long as you choose the proper size. But if you see a specific brand name on a listing, make sure it matches your unit model. **Q: How many air filters do I need?** A: This varies for every customer depending on specific needs such as the number of vents in your home. However, our selection includes package quantities that range from 1 to 12 filters, so no matter what your situation may be, we've got you covered. **Q: How do I change my air filter?** A: After finding the right size, turn off the power supply and remove the cover from your intake vent before taking out the old filter. Then just insert your new filter to match the direction of air flow, replace the cover, and turn the power back on. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good quality and price *by R***. on December 19, 2025* Good: Sturdy and decent quality. I've seen name-brand filters, fresh out of the package, with a full third of the filter material pleats crushed together, requiring a fair amount of time to work loose and massage into shape and re-glue to make them usable. I have yet to see one of these that needed more than pushing a couple of cardboard separators back into place before installation. Fits my furnace where some other brands of the same stated size didn't. Decent price. Bad: Nothing significant. Five stars. ### ⭐⭐⭐⭐⭐ Good replacement. *by H***R on January 17, 2026* They fit fine and seem to work well. ### ⭐⭐⭐⭐⭐ Good price for quality filters *by J***N on October 19, 2025* I was skeptical about buying a non OEM brand filter for my Carrier brand furnace but decided to give it a try since the OEM filters were so expensive. The filters were delivered quickly at half the OEM price. They were the right dimensions and a good fit. Quality was good too. ## Frequently Bought Together - Filterbuy 21x27x5 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement for Trane Perfect Fit & American Standard (Actual Size: 20.56 x 26.13 x 4.97 Inches) - Filterbuy 17.5x27x5 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement for Trane Perfect Fit & American Standard (Actual Size: 17.13 x 26.13 x 4.97 Inches) - Filterbuy 14.5x27x5 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters for Trane, American Standard, Honeywell, and Accumulair (Actual Size: 14.06 x 26.13 x 4.97 Inches) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/57046177-filterbuy-21x27x5-air-filter-merv-8-essential-dust-and-allergy](https://www.desertcart.us/products/57046177-filterbuy-21x27x5-air-filter-merv-8-essential-dust-and-allergy) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*