Ballast Suitable for Uv system inc 172, 175Std and 178
Ballast for Aqua Pro uv systems. Models 172, 175std and 178.
Model No: BA-2040W
Voltage: AC 230V 50/60Hz
Used for: 20W To 40W Max Uv lamp Only
Flow Rate: 6GPM to 12GPM Max
Cable Wire: 6ft
When considering this ballast you are better off to purchase the Top Aqua 40-55Watt Ballast at nearly half the price and a slightly better service life. Top Aqua 40-55watt Ballast(This ballast is not suitable for the aqua pro 20watt (172)