The BZA Congo is a 22-liter / 5.8 US gallon stainless steel canister filter built for large aquariums that demand strong flow, high media capacity, and long service intervals. Designed for heavily stocked systems, predator tanks, and large aquascapes, the Congo delivers powerful turnover with precise control through its DC pump system.

This dual inlet configuration is powered by a 55W DC pump rated at 7200 L/h / 1900 GPH, providing strong, adjustable circulation across large aquariums. Dual inlets improve debris collection from multiple zones, increasing intake coverage and supporting more even water movement throughout the system.

The Congo uses a fully open 22L / 5.8 US gallon internal media chamber supported by stainless steel grates. This tray-free design allows unrestricted flow, large biological media capacity, and consistent performance over long service intervals.

The system operates nearly silently during normal use.

Technical Specs

Dual Inlet Version
• Max flow rate: 7200 L/h / 1900 GPH
• Pump: 55W DC pump with 20-speed controller
• Max head height: 5.2 meters

Shared Specs
• Input voltage: 110–240V AC
• Output voltage: 24V DC
• Frequency: 50–60 Hz
• Tubing size: 16/22 mm
• Canister capacity: 22L / 5.8 US gal
• Media chamber: 22L / 5.8 US gal open chamber

Dimensions

• Canister height: 16″
• Canister width: 10.5″
• Tubing size: 16/22 mm

Filtration Design

The Congo uses a wide-open internal layout designed for high flow, large media volume, and long-term biological stability.

Included internal media layout from bottom to top:
• Coarse foam filter pad for mechanical filtration
• High-capacity biological media zone
• Open upward flow path to outlet

The tray-free chamber gives the filter a large usable media area while allowing water to move freely through the canister body.

Key Features

• Dual inlet system for improved debris collection and intake coverage
• 7200 L/h / 1900 GPH max flow rating
• Suitable for aquariums up to 300 gallons
• 55W DC pump with 20-speed adjustable controller
• Wave function for dynamic flow patterns
• Feed mode for temporary flow pause
• 22L / 5.8 US gallon open media chamber
• Tray-free internal layout for unrestricted flow
• Stainless steel canister body
• Stainless support and retention grates for stable media placement
• Nearly silent normal operation
• Includes high-quality tubing and stainless steel lily pipes
• High-capacity design for extended service intervals

What’s Included

• 22L / 5.8 US gallon stainless steel canister body
• 55W DC pump
• 20-speed wired controller
• Dual inlet fittings
• Stainless support and retention grates
• Clamp-lock lid with O-ring seal
• Pump mounting hardware
• Base pad

Tank Size and Turnover Guide

Dual Inlet Configuration — 55W / 7200 L/h

• Approximately 13× turnover on a 150-gallon aquarium
• Approximately 10× turnover on a 200-gallon aquarium
• Approximately 8× turnover on a 275-gallon aquarium
• Approximately 6× turnover on a 300-gallon aquarium

This system is suitable for aquariums up to 300 gallons depending on stocking level, aquascape layout, media load, and flow needs.

Warranty

• 5-year warranty on the stainless steel canister body
• 3-year warranty on the DC pump