How much does this cost to the nearest dollar?

TopTech TechPure QB OEM Replacement Filter - QwikBox(R)-(Assembly Required, See Description & Images)
These high quality original equipment filters are designed for the TopTech and TechPure air cleaner. These filters have a MERV 11 efficiency rating. The new QwikBox collapsed design provides for less chance of shipping damage and takes up less space so it is more convenient to keep spare filters on hand. Assembly required. New QwikBox Collapsed Design That Is Easy To Assemble Prior to Installation MERV 11 TopTech TechPure OEM Original Equipment Replacement Air Filter Fits TechPure Air Cleaner Assembled Size 15.375 x 19.375 x 3.75 Manufacturer TopTech, Part Weight 1.15 pounds, Dimensions 19.38 x 3.75 x

Price is $42.00
Price: $41.95