The Pentek 163550 UV-BAL-120 Ballast works with the Pentek 255663-43 UV-4-G-1/4JG In-Line UV Lamp Module. It works at 120 volt AC and 50/60 Hz.

The Pentek UV-4-G-1/4 In-Line UV Lamp Module is a great addition to any reverse osmosis or filter system.

NOTE: Replace the UV-4-G-1/4 every 12 months to ensure UV intensity for maximum protection.