Average Reviews:
(More customer reviews)You can find these bulbs elswhere (eBay, Google) for $9-12.
Don't pay $30.
Just search for a 9 Watt UV Germicidal Bulb / G23 Base
Click Here to see more reviews about: Pureguardian EV9LB Replacement UV-C Light Bulb and Filter Kills Harmful Bacteria
