Why would anyone pay 50 bucks for a filtered water bottle?? There are good ones you can buy for 10-20 bucks example: https://www.brita.com/water-bottles/?keyword=filtered+water+bottle&gclid=CIHQ9aOX5scCFVNufgodDMMPRg http://www.amazon.com/Hydros-HBSF111-Filtering-Water-Bottle/dp/B006OJHN88 http://www.waterbobble.com/ http://www.camelbak.com/Sports-Recreation/GrooveLanding/Main.aspx http://www.korwater.com/kor-nava-700ml-arctic-ice http://www.hydrosbottle.com/