Im planning on buying the Rhinox1000 which is for 20gal and up for 9.99 + 5$ shipping. I too would like to know if its a good performer. I plan to use it for my 29 gal DIY co2 setup. My other choice would be the Co2 diffuser : 3 coils which is said to be Compatible for pressurized Co2 tanks and DIY yeast bottles. It would be alot easier to ship for me since the guy i would be shipping it from lives closer so shipping would come in a day or 2 most likely and the nice thing is i have already ordered something from him once and all went well.