Aqua Ultraviolet AAV20025 Mercury Quartz Lamp for Aquarium, 25-watt

I use this Aqua Ultraviolet light on my 90 gallon saltwater aquarium. It creates crystal clear water and kills all unwanted bacteria

One year in and this bulb is still working just fine, keeping my pond water nice and clear. I highly recommend this.

Excellent replacement for exactly what I need for my tank. It's on standby probably for over a year before the other one runs out. But the original is in there and this is the original that's what I like about it.

This is a named Brand PRODUCT that amazon doesn't sell enough of!

it's worked and done in a good jobs. after my old light burned and I didn't realize two weeks later. the pond it's greenish and you can't see a foot deep in the water. change waters filters daily to hope help clear the green while waiting for the new uv light. as soon the light arrived I install its right away. still change water filter daily for first two days with the new light. then chanced water filter about 3/4 day then a week a time. water it cleared now. I can see deeply two and half feet's after 3 weeks it really work. I'm changed water every other week now. and I'm see bottom of my pond now, and see black small fish in my pond that I bought it last year and thought it gone. I'm happy with this UV Light.

Installed today and seems to be working just fine. Well packed and delivered right on time. Will see if it lasts as long as the original Lamp (5 Years) from the original UV system manager (that is much higher priced}.

Happy with my purchase, lamp works great, bright and does the trick. Must have in saltwater aquarium. Helps to keep my fish clean of ich .

I bought a house with a waterfall in the backyard after a while I noticed the UV unit pressure fitting had come loose and was leaking water. Water had gotten into the unit and blew the old transformer and UV lamp. The previous owner didn't leave any manuals or information on the unit. I knew nothing of how the unit worked or what it was for. I called Aqua. The TS people were friendly and explained everything to me. They directed me to the online manuals for the unit to download. I ordered a new transformer and UV bulb to replace the bad ones. Aqua shipped the parts right away and I got it back running in no time. I am completely satisfied with the transformer, the UV bulb and Aqua company.