--- product_id: 253578756 title: "TopTech TT-FM-2020 Ready to Use TechPure TTFM2020 Air Filter 20x20x4 Top Tech OEM Cartridge 20 by 20 by 4 in Furnace MERV 11 Carrier TT-MAC-2122 TT-MAC-2020 with Dakota Supplies Installation Sticker" brand: "toptech" price: "₨115334" currency: LKR in_stock: true reviews_count: 5 url: https://www.desertcart.lk/products/253578756-toptech-tt-fm-2020-ready-to-use-techpure-ttfm2020-air store_origin: LK region: Sri Lanka --- # TopTech TT-FM-2020 Ready to Use TechPure TTFM2020 Air Filter 20x20x4 Top Tech OEM Cartridge 20 by 20 by 4 in Furnace MERV 11 Carrier TT-MAC-2122 TT-MAC-2020 with Dakota Supplies Installation Sticker **Brand:** toptech **Price:** ₨115334 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** TopTech TT-FM-2020 Ready to Use TechPure TTFM2020 Air Filter 20x20x4 Top Tech OEM Cartridge 20 by 20 by 4 in Furnace MERV 11 Carrier TT-MAC-2122 TT-MAC-2020 with Dakota Supplies Installation Sticker by toptech - **How much does it cost?** ₨115334 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/253578756-toptech-tt-fm-2020-ready-to-use-techpure-ttfm2020-air) ## Best For - toptech enthusiasts ## Why This Product - Trusted toptech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description 20" x 20" x 4" Original OEM Furnace Filters , direct replacement for your TechPure and TopTech air cleaners , easy to install No assembly required, ready to use out of the box , easy replacement just remove the door of you air cleaner , discard the old filter and replace it with the new filterMERV 11 High Eficiency Rated Filter removes airborn particles alergens dust polutants animal dander mold sopres dust mite cleans the air of the entire houseHeavy Duty Materials 30 gauge Galvanized Expanded metal Grid Electrostatically Charged Pleated 100% Sintetic Gradient Media Moisture Resistant Board Max Temperature 180 F Continuos Service 225 F Peak Resistant to 100% HumidityActual size 19.375" x 19.375" x 3.75"Ships in a plastic bag to avoid contamination Review: This Merv 11, 4x20X20 filter fits my new Tech Pure filter box on my Bosch air handler perfectly. Though I had a Carrier unit before, and the filter was also listed as 4x20x20, it does not fit due to the height being different. I was aware from previous issues with filters to always check the "specifications" for the exact size of the filter to prevent having to return an item. For those who don't know, it is not a one size fits all, due to different specs fitting into that universal 4x20x20 size. This filter is 19.375x19.375x3.75, which is a half inch difference in height than the previous filter I have, but both are labeled 4 x 20 x 20. This filter arrived next day,well packaged and in a protective plastic sleeve. I have placed it on auto ship so I don't have to look it up, though my thermostat tells me when it is time to change the filter. Slid right into place with no problem, I do not anticipate any issues as this Top Tech filter is an OEM filter that was placed at time of install. Already assembled and ready to use. Wire mesh to hold the filter in shape. Review: Right fit ## Features - Direct replacement - Ready to use , no assembly required - MERV 11 high eficiency filter - Removes allergens and air pollutants - Included is a Dakota Supplies date of installation sticker ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B078C52JR7 | | Brand Name | TOPTECH | | Compatible Devices | Air Cleaner, Furnace | | Customer Reviews | 4.7 4.7 out of 5 stars (308) | | Item Dimensions L x W x Thickness | 50.8L x 50.8W x 10.2Th centimeters | | MERV Rating | 11 | | Manufacturer | TOPTECH | | Material Type | Metal | | Model Number | TT-FM-2020 | | Number of Items | 1 | | UPC | 714833366041 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** TOPTECH - **Compatible devices:** Air Cleaner, Furnace - **MERV rating:** 11 - **Material:** Metal - **Product dimensions:** 50.8L x 50.8W x 10.2Th centimeters ## Images ![TopTech TT-FM-2020 Ready to Use TechPure TTFM2020 Air Filter 20x20x4 Top Tech OEM Cartridge 20 by 20 by 4 in Furnace MERV 11 Carrier TT-MAC-2122 TT-MAC-2020 with Dakota Supplies Installation Sticker - Image 1](https://m.media-amazon.com/images/I/71B+RLr7roL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by T***J on 16 August 2025* This Merv 11, 4x20X20 filter fits my new Tech Pure filter box on my Bosch air handler perfectly. Though I had a Carrier unit before, and the filter was also listed as 4x20x20, it does not fit due to the height being different. I was aware from previous issues with filters to always check the "specifications" for the exact size of the filter to prevent having to return an item. For those who don't know, it is not a one size fits all, due to different specs fitting into that universal 4x20x20 size. This filter is 19.375x19.375x3.75, which is a half inch difference in height than the previous filter I have, but both are labeled 4 x 20 x 20. This filter arrived next day,well packaged and in a protective plastic sleeve. I have placed it on auto ship so I don't have to look it up, though my thermostat tells me when it is time to change the filter. Slid right into place with no problem, I do not anticipate any issues as this Top Tech filter is an OEM filter that was placed at time of install. Already assembled and ready to use. Wire mesh to hold the filter in shape. ### ⭐⭐⭐⭐⭐ Review *by G***R on 31 March 2026* Right fit ### ⭐⭐⭐⭐⭐ Review *by W***T on 11 July 2023* Easy to put in place. Cost is reasonable. Does a great job filtering the air inside the house. --- ## 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.lk/products/253578756-toptech-tt-fm-2020-ready-to-use-techpure-ttfm2020-air](https://www.desertcart.lk/products/253578756-toptech-tt-fm-2020-ready-to-use-techpure-ttfm2020-air) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-04-22*