How much does this cost to the nearest dollar?

AO Smith Clean Water Single-Stage Fridge Filter - NSF Certified Carbon Block Filtration
Advanced Filtration - Reduces up to 99% of 77 harmful contaminants including lead, mercury, asbestos, pesticides, pharmaceuticals, chlorine, and more. Claryum filtration reduces harmful contaminants – those you can see, smell and taste, and those you can’t – for optimally clean water. Filter lasts 200 gallons or 6 months. Easy Installation - Clean water right from your refrigerator/freezer whenever you need it. Full system NSF Certified to standards 42, 53, and 401 +P473. Includes system, one Claryum filter, and all parts necessary for installation. No plumber required. Limited 1-year warranty. Dimensions 12.68 x 

Price is $45.00

Price: $44.99