The Trojan 660002-R accepts the following UV lamp replacements:
The Trojan UV Max K Plus - Ultraviolet Filter System reduces bacteria, Cryptosporidium and Giardia, and viruses within your water. Useful in light commercial applications requiring safe drinking water, the UVMAX K Plus system features a 200 watt UV lamp that lasts up to two years. This UV filter system also features Easy Quarter-Twist Assembly and CoolTouch, which reduces water temperature as necessary. Boasting an intuitive interface and ease of use, this ultraviolet water filter system provides consistently purified water.
Trojan UV Max K Plus - Ultraviolet Filter System specifications: