Say goodbye to losing fish from power outage FOREVER.......

If you keep Aquarium fish then no doubt by now you have experienced the loss of fish when that unexpected power outage occurs. Just like you and I fish need oxygen without it they will die. During the summer months when temperatures are warmer oxygen dilution is also lower in your aquarium. It is also during these warmer months when the storm season hits and power outages become more frequent.

During these power outages, it is not the lack of filtration that causes death among your loved fish, it is the lack of oxygen that is the killer. Introducing a revolutionary new product that will change the aquarium industry forever. This unique aquarium air pump works just like any other air pump on the market but with some amazing new features that will help prevent the loss of fish during that unexpected power outage.

What makes this air pump so special?

AUTOMATIC Emergency Back-Up Power Supply:

The advance technology of this pump detects a power outage and will convert AUTOMATICALLY from your typical AC power supply over to its built-in smart technology lithium battery DC power. During a power outage, the pump will use its back up power stored in the hi-grade lithium battery and will enter Emergency Mode. While the pump is in the emergency mode it will continue to pulse air into the aquarium giving you up to 12 hours of oxygen supply. Once the power returns the pump will automatically return to AC power and exit emergency mode and supply full oxygen to the aquarium while recharging the lithium battery in preparation for the next power outage.


  • 1x Hopar GD-3800 AC/DC Air Pump
  • 1x Power Supply/Charger
  • 1x Bracket
  • 1x Manual
  • 10 Second Pulse Mode
  • Full Mode
  • 15 hour Back Up Battery Supply
  • Ultra Silent Dual Insulation Shell
  • Stylish Slim Design
  • Broad Minded, 1 Outlet Nozzle
  • Automatic AC/DC Switch
  • Built in Rechargeable Lithium Battery
  • LED Light Indicators
  • Brand: Hopar/Biopro
  • Model: GD-3800
  • Outlets: 2
  • Adjustable: No
  • Power: 4W
  • Battery: Lithium
  • DC Voltage: 5V
  • Battery Life: 12 Hours Emergency Supply
  • Air Flow: 2 x 2L/Min
  • Pressure: >0.014MPA
SKU GD-3800
Barcode # 642889754294
Brand Biopro/Hopar
Shipping Weight 0.3600kg
Shipping Width 0.100m
Shipping Height 0.060m
Shipping Length 0.190m
Unit Of Measure ea
Assembled Length 0.190m
Assembled Height 0.060m
Assembled Width 0.100m


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