How much does this cost to the nearest dollar?

KOHLER Insert Laminar, 1.5 Gpm, Small
Product Description Aerator Small Insert Kit. 1. 5 Gallons Per Minute flowrate, this is only the Laminar insert, not a complete replacement kit and designed for specific Kohler faucets. From the Manufacturer Aerator Small Insert Kit. 1.5 Gallons Per Minute flowrate, this is only the Laminar insert, not a complete replacement kit and designed for specific Kohler faucets. Genuine KOHLER product Insert Only For use with and Country of Origin China Manufacturer KOHLER, Part Weight 0.634 ounces, Dimensions 3.5 x 3.5 x 0.58 inches, Country of Origin China, model number Size Small, Finish Pol

Price is $4.00
Price: $4.2