For pond and aquarium use
The Supreme AP-Series air pumps have been designed to satisfy the requirements of a multitude of water-related applications. These beautifully designed, environmentally friendly pumps can be used for:
The DC-250 is a battery back-up air pump which runs only when the electricity goes out. Requires 2 D batteries to operate.
The live help is excellent by the way. Will re-use your shop again as I found you to be very helpful.