How much does this cost to the nearest dollar?

Max Water Replacement Ceramic Dome Water Filter 0.5 to 1 micron, compatible with Zen Water Purification Systems, Gravity Water Filters (Pack of 4)
💧 Traps Impurities Max Water Micro Ceramic Filter is the first stage that defends you against impurities such as sediment, and turbidity that turns your water shades of yellow and brown. 💧 Enhances Water Quality Kickstart the process of turning dirty tap water into clean, filtered water with Max Water’s micro-ceramic filter. With pore size of 0.2 micron in diameter (while most range from 0.5 to 1 micron), only the cleanest water molecules will pass through this filter. 💧 Your Economical Choice Our ceramic water filter cleans up to 1,000 gallons or 1 year

Price is $40.00
Price: $39.95