... -1.1/1.5 CE certificate small,light weight,little noise,easy to install diving depth and jet angle can be adjusted SJ-T-1.1/1 ... a few weeks, and achieves the function of cleaning water .3, because of oxygenating sufficiently, we can make highly intensive farming ... , and will melt ice by itself after start the machine.6, made of stainless steel, sealed with high quality mechanical, built ...