No Toil Castle, One-Year HVAC Furnace Filter, 20” x 20” x 1” - Black - 20201
Brand: Castle Filters
Color: Black
Categories: Tools & Home Improvement, Building Supplies, HVAC, Furnace Parts & Accessories, Furnace Filters


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

MERV Rating: 8
Material: Polyester, Paper
Product Dimensions: 20 x 20 x 1 inches
Brand: Castle Filters
Compatible Devices: Furnace
Batteries Required?: No
Warranty Description: One Year
Manufacturer: No Toil (NOTOM)
Item Weight: 11.2 ounces
Assembly Required: No
ASIN: B076VXJC3J
Country of Origin: USA
Item model number: 000020201
Customer Reviews: 4.5 out of 5 stars 2,739 ratings 4.5 out of 5 stars
Is Discontinued By Manufacturer: No