OceanTech Overflow Box 400 – Ultra-Slim Internal Overflow System

OceanTech Overflow Box 400 – Ultra-Slim Internal Overflow System

The OceanTech Overflow Box 400 is an ultra-slim internal overflow system designed to help transfer aquarium water to a sump filtration system. Its compact profile helps maximise usable aquarium space while providing an integrated solution for reef tanks and other sump-based aquarium setups.

By collecting surface water and directing it towards the sump, an overflow system helps remove surface film and supports efficient water circulation through the filtration system. The OceanTech Overflow Box 400 is ideal for aquarium enthusiasts looking for a clean, space-saving overflow design.

Key Features

• Ultra-Slim Design: Compact profile helps preserve valuable space inside the aquarium.
• Surface Water Collection: Helps direct surface water into the overflow for transfer to the sump.
• Sump Compatibility: Designed for aquarium systems using a sump-based filtration setup.
• Clean Aquarium Appearance: Provides an integrated overflow solution for a neat, organised tank setup.
• Supports Water Circulation: Helps move aquarium water through the sump filtration system.
• Suitable for Reef Systems: A practical option for reef and other compatible marine aquarium installations.

How It Works

Water reaches the overflow intake and drains through the connected plumbing into the sump. In the sump, water can pass through mechanical, biological and other filtration equipment before being returned to the aquarium by a return pump.

Ideal For

• Marine and reef aquariums
• Sump filtration systems
• Custom aquarium installations
• Aquarium setups requiring a slim internal overflow

Product Specifications

• Brand: OceanTech
• Product: Overflow Box 400
• Type: Ultra-Slim Internal Overflow System
• Application: Aquarium-to-sump water transfer
• Suitable For: Compatible sump-based aquarium systems

Installation & Maintenance

Ensure the overflow is installed securely and that the plumbing, drain capacity and return pump are compatible with your aquarium system. Test the setup for leaks and confirm safe drainage during power interruptions before adding livestock.

Choose the OceanTech Overflow Box 400 for a slim, integrated overflow solution that helps connect your aquarium to an efficient sump filtration system.