Not sure where you got that price from but thats pretty expensive. I brought my reg with solnoid, bubble counter, tubing and diffuser for $215 from trademe which is the same reg that you post from ebay. I also brought the bottle for $200 with the first two refills for free from here http://www.wises.co.nz/p/pressure-check ... ting/nzf5/ so all up it only cost me $415. If anyone is interested let me know and I can pm you the buyer I brought it from as I think he has a few for sale. He also gave me a heap of plants as well.