$50 for a calcium reactor, SCORE! You should be able to find a cylinder at any airgas supplier. Anywhere that they sell compressed gas. Also many home beer brewing places sell the cylinders. It's the same thing as used for home keg systems.
You can also buy them online. Even Amazon has a bunch. Might want to check craigslist for cheaper options though.
$50 for a calcium reactor, SCORE! You should be able to find a cylinder at any airgas supplier. Anywhere that they sell compressed gas. Also many home beer brewing places sell the cylinders. It's the same thing as used for home keg systems.