Magnus Jern, Chief Water Drinker at Tapp Water, explains the company's TAPP 2 biodegradable water faucet filters. Tapp Water filters decompose in industrial compost piles quickly and will break down in backyard compost piles. Even the body of the TAPP 2, which is made with biodegradable PLA plastic, is largely recyclable. American families spend more than $5.5 billion on plastic-bottled water unnecessarily because they are concerned about water quality. They pay between 300 and 2,000 times more than tap water costs for plastic-bottled water. A faucet filter can eliminate plastic pollution and save hundreds of dollars annually.