Never needs to be replaced. Just wash and let dry in the sun and you're good to go.

[This review was collected as part of a promotion.] fits perfectly, and a great price.

very good product good quality

mine arrived bent at the corners and would not fit.

Great quality. Good value

Good product, thick to provide more filter

Having a reusable filter is the best Investment I' ve made My health is improving

[This review was collected as part of a promotion.] Excellent quality. Best price around

these are great save so much money over time and they seem to work better then the cheap disposable ones recommend buying two so one can be clean and try well the other is being used

My wife told me about this filter. We purchased one and used it for a month, then purchased a second one so we always have an extra when we clean it.