How much does this cost to the nearest dollar?

AQUALINK Replacement for Kenmore Elite 9980, Refrigerator Water and LT120F Air Filter, 2PACK.
🍀 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧 NSF/ANSI 42 Standard, tested & verified by independent laboratory. European TUV, BPA-Free, ROHS, REACH, Australian Water Mark Certified.NSF/ANSI 42 Standard, tested & verified by independent laboratory. European TUV, BPA-Free, ROHS, REACH, Australian Water Mark Certified. 🍀 𝐌𝐮𝐥𝐭𝐢‒𝐥�

Price is $21.00

Price: $20.99