--- product_id: 63670324 title: "No Toil, Castle One-Year HVAC Furnace Filter, 20\" x 36\" x 1\"" brand: "no-toil" price: "217.11 DT" currency: TND in_stock: true url: https://www.desertcart.tn/products/63670324-no-toil-castle-one-year-hvac-furnace-filter-20-x store_origin: TN region: Tunisia --- # 1-year lifespan - 4-12x longer 400% more surface area for airflow MERV 8 - 93% dust removal No Toil, Castle One-Year HVAC Furnace Filter, 20" x 36" x 1" **Brand:** no-toil **Price:** 217.11 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Upgrade your air game: Filter smarter, breathe better, last longer! ## Quick Answers - **What is this?** No Toil, Castle One-Year HVAC Furnace Filter, 20" x 36" x 1" by no-toil - **How much does it cost?** 217.11 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/63670324-no-toil-castle-one-year-hvac-furnace-filter-20-x) ## Best For - no-toil enthusiasts ## Why This Product - Trusted no-toil brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Proudly Made in USA:** Backed by US patent #10,183,249 B2 for trusted innovation - • **Unmatched Longevity:** Lasts up to 1 year, replacing 20 standard pleated filters - • **Energy & Eco-Friendly:** Reduces energy use and landfill waste by cutting filter replacements drastically - • **Patented Triple-Layer Foam:** 3 layers of open-celled foam with a tacky center trap dust like flypaper - • **Superior Airflow Efficiency:** High-flow MERV 8 rating ensures max air circulation with 93% particle capture ## Overview The No Toil Castle One-Year HVAC Furnace Filter features patented triple-layer open-celled foam with a tacky center layer that captures 93% of harmful dust particles. With 400% more surface area than standard filters, it lasts up to one year—20 times longer than typical pleated filters—saving energy and reducing waste. Proudly made in the USA under patent #10,183,249 B2, it offers superior protection for your home and HVAC system while maintaining maximum airflow. ## Description The Castle air filter is a new innovative HVAC filter that will last up to a year. This new filter will collect as much dust as 20 regular pleated filters. High air-flow with an open-cell, triple-layer core with a tacky media for collecting dust removes 93% of the most harmful airborne particles in your home (>5 microns). Treat yourself and your HVAC system to longer lasting filtration. ## Features - Patented Filter Technology: Castle Filters use 3 layers of ¼-inch open-celled foam, with a patented tacky center layer that catches dust like fly paper. Proudly made in USA - US patent #10,183,249 B2 - MERV 8: The High-Flow MERV 8 air filter effectively removes 93% of the most harmful dust particles and offers superior protection of your equipment and home while still allowing maximum air-flow - HVAC Filter: Castle Filters have 400% more surface area for dust and other particles to collect. The internal foam is treated with a sticky material to collect more dust while letting the air pass through - Lasts One Year: The furnace filter holds up to 20 times more dust than a pleated filter. While pleated filters need to be replaced about once a month, the Castle Air Filter lasts one year which is 4-12x longer than the others - Save Energy and Lower Land Fill Contribution: Castle Air Filter helps you save energy with its advanced filtration technology and also helps in generating less waste as it need not be changed every month like a standard filter ## Product Details - **Brand:** No-Toil - **Material:** Paper - **Product Dimensions:** 36"L x 20"W x 1"Th - **MERV Rating:** 8 - **Compatible Devices:** Furnace - **Item Weight:** 0.97 Pounds - **Global Trade Identification Number:** 00852020006117 - **UPC:** 852020006117 - **Number of Items:** 1 - **Manufacturer:** No Toil ## Images ![No Toil, Castle One-Year HVAC Furnace Filter, 20" x 36" x 1" - Image 1](https://m.media-amazon.com/images/I/81iMkRP9TvL.jpg) ![No Toil, Castle One-Year HVAC Furnace Filter, 20" x 36" x 1" - Image 2](https://m.media-amazon.com/images/I/712cRRqnQsL.jpg) ![No Toil, Castle One-Year HVAC Furnace Filter, 20" x 36" x 1" - Image 3](https://m.media-amazon.com/images/I/71+rRJ9Xt1L.jpg) ![No Toil, Castle One-Year HVAC Furnace Filter, 20" x 36" x 1" - Image 4](https://m.media-amazon.com/images/I/81Bir4SPUjL.jpg) ## Available Options This product comes in different **Pattern Name, Style** options. --- ## 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.tn/products/63670324-no-toil-castle-one-year-hvac-furnace-filter-20-x](https://www.desertcart.tn/products/63670324-no-toil-castle-one-year-hvac-furnace-filter-20-x) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-03*