BuyDig via eBay offers the SodaStream Fountain Jet Home Soda Maker Kit in Black or Red for $47.99 with free shipping. That's $2 below our June mention and the lowest total price we've seen for such a kit. (It's a current low by $9.) The set includes the SodaStream Soda Maker, four bottles in various colors, and mini CO2 canister. Deal ends September 13.