Product review (4 stars): ... should expect to pay for an item that is recommended to be replaced every 6 months
Price is more in  by calendar evalutionline with what one should expect to pay for an item that is recommended to be replaced every 6 months. My first replacement purchase at the retail store was $96.00 for the air filter and water filter.  When I bought it in June of 2016 I thought to myself I guess this will be Christmas and Father's Day gift's to myself.