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Up to three H2Overflow® screens can be installed on a single Stealthbox®, allowing for one unit to handle up to 3600 gallons per hour of flow to the filter. The Stealthbox® also has a PVC cover to prevent evaporation and further ensure quiet operation. Additionally, the Stealthbox® is designed with a wide array of integrated molded slip fittings and standard diameters, both inside and outside of the aquarium overflow box.
#AQUARIUM OVERFLOW BOXES CRACK#
There are no welds to crack or leak and the PVC material ensures a stronger glue bond with standard PVC fittings. The entire unit, including the box and the integrated fittings, are constructed of the industry’s strongest black PVC in a one-piece molded fabrication. The Stealthbox® is the quietest and most dependable external aquarium overflow box you can buy anywhere! The top of the Stealthbox® sits evenly with the top of the aquarium, eliminating an annoying water line below the upper rim.
#AQUARIUM OVERFLOW BOXES INSTALL#
The unit is easy to install into a single, 1-1/2″ hole drilled at the top of the aquarium. The position of the H2Oveflow is adjustable so it is easy to configure your water circulation patterns and prevent shadowing caused by a fixed overflow sitting under the lights. The H2Overflow® displays a fraction of the water that a traditional overflow box does, and still provides more inches of skimming. The skimming screen sits above the top rim of the aquarium, eliminating unsightly water lines, and the entire unit installs out of sight at normal viewing height. Multiple H2Overflows® can be combined in one aquarium, greatly increasing the turnover rate for water through the aquarium overflow filter system.

The large skimming area, with tapered screen openings and open-top, minimizes the risk of a flood caused by debris, clogging the screen. The H2Overflow® Stealthbox® uses all the advantages of the H2Overflow® screen and combines it with the most versatile, practical, durable, and do-it-yourself-friendly external aquarium overflow box available today! The H2Overflow® screen provides an amazing volume of skimming with a minimal footprint, allowing up to 1200 gallons of water to flow safely and swiftly into the filter system. Custom Aquariums has an even more innovative solution for your fish aquarium overflow.
