Philips 325126 9-watt PL-S TUV Germicidal with 2-Pin Base Light Bulb

Worked for me.

Light bulb was replaced, it works, very hard to find and it keeps my pond of 500 gallon super clean of algie and my 75 Koi are nice and healthy.

Works great with our Aerus air cleaner. Have been using for months will purchase again

Haven’t used them . I purchased cheap Chinese off brand ones that didn’t last very long .... so we will see .

arrive on time and it works - beautiful thing

I use this as part of my aquarium system to control algae. My old one blew out. This on was a good price, speedy delivery, and installed easily.

Fish pond

Perfect

The bulb was exactly what I needed for the Air Guardian.

This germicidal UV lamp clears up the algae in my outdoor fish pond in no time at all and keeps the water clear and free of growth. Without it it would be impossible to see the fish as the water would be murky and green.