The Polaris GL39SE4P is the correct replacement lamp for the following UV filter systems:
The Polaris GL39SE4P 39W Replacement Lamp- 12-100 GPM fits several ultraviolet water filtration systems from Polaris. This Polaris lamp can be used with UV systems requiring a 39 watt UV bulb. This germicidal lamp removes tiny microorganisms within seconds and improves the taste and quality of water. This UV bulb is protected by the system's quartz sleeve and has a 4 pin design.
Polaris GL39SE4P 39W Replacement Lamp- 12-100 GPM specifications: