Our OG-1000 water ozonator is designed and made to last a lifetime! Made without all of the "bells and whistles" that cause other ozonators to fail, sometimes within a few months, this water ozonator features a solid oak base, an easy to get to 6" glass "cold corona" ozone tube, a 1KV power transformer, a 100 CFM 120mm aluminum cooling fan, a UL listed 3 pronged power cord, an external 8 lpm air pump, two stones and 3" of tubing. Best of all, we stock ALL PARTS so that when something gives out, you can easily replace it yourself and in the process help keep our landfills free from yet another piece of crap poorly made ozonator! The ozone tube only cost $15 to replace, the transformer $15, and the 8 lpm air pump $15. The 120mm AC fan can be replaced with any model AC fan on the market (around $15) when it fails. We decided to add a fan to help cool the glass tube ozone generator (covered with black tape) which will ensure higher ozone output (high heat breaks down ozone quickly). The hoses and stones can be replaced for under $3 as well, but they should last many many years even with daily use. Price also includes USPS Priority Mail shipping anywhere in the USA. We only have a 110V version available but will sell a 220V version with a Euro Plug in August 2011. Specs: Power: 12 watts - 110V. Weight: 2 lbs. Size: 9" long, 5" wide, 3" high. Made with pride in the USA.