Precautions for Use and Possible Problems?please note this before opening the product,make sure there is no water in the hose and the hose is not submerged in water. when in use If air enters the plastic tube cause cannot be sucked up water, please drain the water in the hose and the plastic tube, make sure the hose is not immersed in water, and turn it on again.We have a one-year warranty, please rest assured to use. Complete Supporting Facilities and Diverse Functions?The main function is ?automatic changer water ?sand washer ?debris cleaning ?water filter,Full set of equipment: 1*duckbill suction inlet with spatula 1*gravel washer 1* 6.5ft water tube(14MM-18MM) 1*Adapter 1*water pump 2* extension tube 1*motor controller with clip 1*tube connector 1*bucket plastic clip,2 water pipes, which can be used alone or connected for extended use. Both large and small fish tanks can be taken care of. 3 Grades Adjustable Flow Rotary Switch,With Battery Indicator Light?Different flow grades can be adjusted according to different needs,maximum flow is 420GPH(1600H/L).We recommend that you drive to the maximum grade first and then lower the gear. This approach will quickly start the motor and increase the flow rate.You can follow the battery at any time through the battery indicator.It can be used for 2 hours when fully charged. Powerful Electric Water Changer,Use of the Site and Water Pressure are Unrestricted?Compared with the traditional siphon water changer, the new electric water changer can be used whether it is pumping water from high to low or from low to high, and it is not limited by water pressure.The water at the bottom of the fish tank can be pumped clean, there is no minimum water level. Free Your Hands,The motor controller with a clip ,can be adjustable according to the thickness of the fish tank. Aquarium Gravel Vacuum Works Two Ways By Plug In Or Rechargeable Use?Innovative patented design water changer,3 power supply modes can be selected, increg the convenience of daily use:?It is used by plugged in ?After fully charged, disconnect the adapter and use it, and it can be moved freely without being restricted by the length of the cord and place.?Use while charging,while using, the battery will store electricity at the same time.Please fully charge before use.

Best Sellers Rank: See Top 100 in Pet Supplies. : B09NVDGMVG. Manufacturer: AQQA. Date First Available: February 17, 2022. Item model number: AQ119. Package Dimensions: 17.6 x 11.14 x 3.5 inches; 2.98 Pounds. Is Discontinued By Manufacturer: No.