How much does this cost to the nearest dollar?

ApplianPar Pack of 4 WF2 Humidifier Wick Filter for Vicks Kaz 3020 V3100 V3500 V3500N V3600 V3800 V3850 V3900
Fits Enviracaire model Fits Honeywell models Fits Vicks models WF2 V3100 V3700 V3900 V3500N V3500 V3850 V3800 Fits Sunbeam models 1118 1119 1120 Fits Robitussin model DH835 Fits ReliOn model WA-8D Fits Kaz model 3020 Dimensions 12.64 x 12.17 x 4.53 inches, Weight 0.634 ounces, Manufacturer ApplianPar, Rank Tools & Home Improvement Humidifier Parts & Accessories

Price is $21.00
Price: $21.48