Ultraviolet water purifiers feature and optional accessories comparison chart

What is ultraviolet? What is germicidal ultraviolet? What are the beneficial uses of germicidal ultraviolet?
What microorganisms are deactivated by ultraviolet? What are questions to ask when buying ultraviolet?

Features	Bio-Logic 1.5 gallons per minute	Minipure 1 to 9 gallons per minute	Mighty Pure 2 to 20 gallons per minute	Sanitron 2 to 416 gallons per minute	Sanitron S2400C - S25,000C	Megatron 90 to 450 gallons per minute
Stainless Steel Construction	X	X	X	X	X	X
Ultraviolet Germicidal Lamp with 10,000 Hours Rated Effective Life	X	X	X	X	X	X
Quick Lamp Change with the Easy Off Retainer Cap	X	X	X	X	X	X
Fused Quartz Sleeve	X	X	X	X	X	X
Lamp Out Indicator Light(s)	X	X	-	-	-	X
Drain Fitting	-	-	X	X	X	X
Sight Port to View Lamp Operation	-	-	X	X	X	X
Patented Dual Action Wiper Mechanism	-	-	-	X	X	-
Flanged Heads that can be removed or rotated	-	-	-	-	X	-
Sediment and Carbon filter	X	-	-	-	-	-
Residential use	X	X	X	X	X	-
Commercial Use	-	-	X	X	X	X
Optional Accessories
Patented Dual Action Wiper Mechanism - Manual	-	-	-	-	-	X
Patented Dual Action Wiper Mechanism - Automatic	-	-	-	-	-	X
Mounting Kit	X	X	X	X	X	-
Guardian Ultraviolet Monitor	-	-	X	X	X	X
Sentry Safety Sensor	X	X	X	X	X	-
Audio Alarm	X	X	X	X	X	-
Solenoid Valves	X	X	X	X	X	-
Flow Control Valves	X	X	X	X	X	-
Elapsed Time Indicator	X	X	X	X	X	X
Time Delay Mechanism	X	X	X	X	X	-