AA GKM3W Mini Internal UV with Power Head – For Aquariums Up to 20 Gallons

Compact UV-C filtration for small aquariums

The AA GKM3W Mini Internal UV with Power Head is a compact filtration companion designed for tanks up to 20 gallons. It blends a submersible water pump with a direct-contact UV lamp to support water clarity, helping your display look crisp and inviting. When used as part of a careful maintenance routine, this unit can contribute to a steadier water appearance and clearer viewing experiences.

How it helps your tank

• Direct-contact UV exposure boosts filtration efficiency by circulating water through the UV chamber.
• Compact footprint and tool-free installation fit neatly inside most small tanks with the included suction cups.
• 50 GPH flow on a small unit keeps water moving without creating strong currents.
• UL-listed unit with EPA Est # 093568 and replacement bulbs/sponges available for ongoing maintenance.

Dimensions and setup:

• 2.5" x 2.5" x 7.5" footprint with sealed UV bulb design to minimize housing wear.
• Includes water pump and sealed UV bulb; plug is UL-listed for the US market.

Usage, maintenance, and safety

• The lamp contains mercury; dispose of bulbs per state and local disposal laws.
• Bulbs typically last 6–9 months under steady operation; plan replacements accordingly.
• Change bulbs without tools and keep the bulb housing clean for optimal performance.
• Spare bulb and replacement sponge are available for ongoing care.

Practical tips for use: If you’re stocking a lively community tank or a shelf with colorful aquatic life, this unit can quietly support clarity while you focus on compatible filtration and feeding routines. While results vary, many hobbyists find that a well-timed UV replacement and regular maintenance help keep a visually bright aquarium without heavy changes every week.