An Epoch-making professional device for all the Koi lovers.
The Minus ion concentration around this stone will be ten times higher than normal, reaching the density of 4900pcs/cm3 usually to be found only at waterfalls. 1, Made of ceramic, emits minus ions
2, Just connect it to an air compressor - done!
3, The minus ions last for a long time, making this device very economic! |
