How much does this cost to the nearest dollar?

SaferCCTV Humidifier Filters Compatible with Holmes Humidifier Filter A, HWF62, HM1281 HM1701 HM1761 HM1297 Compatible with Sunbeam 3 Pack
1. Why you Need a Humidifier Filter? Evaporative cool mist humidifiers cannot run without the use of a wick filter.Helps Remove Household Odors. 2. Fits following model Compatible with Holmes Models HM1295 Compatible with Sunbeam Models & Compatible with Models 3. Warm tips Replacing your Humidifier Filter - The harder the water, the shorter the filter life. This is because minerals will get trapped in the filter over time and cause the filter to lose its ability to wick. We recommend you replace your filter every 4-6 weeks,

Price is $21.00
Price: $20.99