How much does this cost to the nearest dollar?

Air Line Hose Fitting Connector Genuine PCL Quick Release 1/4 inch Male 5pk FT021
This listing is for a pack of 5 air fittings. Genuine PCL Fittings made in the UK. Male PCL fitment quick release fittings with 1/4 BSP Male Thread. 13mm hex for tightening. Zinc Plated for corrosion protection. Sold on Amazon Manufacturer AB Tools-PCL, Part Dimensions 6.69 x 5.12 x 0.98 inches, Of Pieces 5, Measurement System Inch, Available March 16, 2017, Brand AB Tools-PCL, Dimensions LxWxH 6.69 x 5.12 x 0.98 inches, Thread Type bsp, Pieces 5

Price is $21.00
Price: $21.4