The closed double layer structure (housing mechanism) reduces sound leakage. Comes with an air adjustment dial that allows you to adjust the discharge amount.
Do not connect with ozone generator. Depending on the location where you install it, the product may move due to vibration during use. (If you stop the connected air tube or the power cord from 1 to 2 places with tape, etc., it can reduce movement). When using the air pump, the amount of discharge may be reduced due to clogging of the air stones or the wear of the parts, so please check it regularly and replace it with a new one. We recommend using the air tube with "marine hose (sold separately). Check once a year