Resun High-end water changer green

An easy solution for heavy and periodical water change needed by large fish tank

*Directly siphons water from aquarium to sink and then adds  tap water to aquarium straightly afterwards

*Eliminating the hassle of a transfer bucket. Greatly simplify operation for water change for large fish tank

*Specially-designed vacuum with strainer help protect fish and plant when removing waste and doing water change

*A manual valve right after the vacuum for easy control of water flowing out and into the aquarium in the course of water change