Overflow Box, Suitable for Aquarium Sump Kit, InOut Overflow and Return, Hose

MrHN aquarium overflow kit instead of aquarium overflow box, suitable for aquarium sump kit. MrHN InOut Overflow and Return is a complete overflow system that is anti-clogging and easy to remove.
NOTE: For the MrHN Aquarium overflow kit, you need to drill two holes on the side of the aquarium. If only overflow or only water inflow is required, opening a single hole is sufficient. A drill bit that can drill glass is included in the kit, but you need a drill for drilling.
MrHN aquarium overflow kit is suitable for these descriptions: aquarium overflow box, overflow boxes for aquariums, overflow box, overflow box for aquarium, aquarium overflow, aquarium overflow kit, aquarium sump kit.
MrHN In-Out attaches to the side of the tank. You will need to drill two holes for this. Its special internal structure makes it particularly quiet. For maintenance operations such as cleaning pipes or replacing o-rings, lowering the water level by 2 inches is sufficient.
For the MrHN Aquarium overflow kit