How much does this cost to the nearest dollar?

Accumulair Diamond MERV 13 Air Filter/Furnace Filters (6 pack)
The Accumulair Diamond air filter contains one of our most efficient filter media. Made of a high-performance Tribo-Electric synthetic media, the Accumulair Diamond air filter takes electrostatic filtration to the next level. This special material, made of a co-polymer blend, creates one of the highest filtration efficiencies without comprising your system's airflow. These unique fibers are also hydrophobic, meaning they will not absorb moisture or support the growth of harmful contaminants. To increase durability, the pleated media is laminated to a metal backing that is recyclable, galvanized, and corrosion-resistant. The filter has been tested to perform at the Minimum Efficiency Reporting Value of 13 (MERV 

Price is $90.00
Price: $89.94