A20040 Aqua Ultraviolet UV 40 Watt Replacement Bulb Dosing Containers & Accessories which adds to the magnet

which adds to the magnet safety factor

The rails can easily be sized for your specific tank

phosphorus

the water should not be cloudy)

Unique internal Cooling Circuit

A20040 Aqua Ultraviolet UV 40 Watt Replacement Bulb Dosing Containers & Accessories which adds to the magnetNOTE: Picture is the 15w lamp, shown for referrence to show pins and end. The 40w is a longer lamp. Aqua Ultraviolet has the longest lamp life on the market with 14 months of continuous use. The Lamps are designed and made from the highest quality hard quartz glass that transmits higher UV intensity and maximizes kill rates. Four pin single end connection allow for easy safe lamp changes. Look for the blue tips and the Aqua Ultraviolet Logo.