Current-USA - Gamma 40W Pond UV Light Bulb for Germicidal Water Treatment Select Product Below:Quartz Sleeve The open ended quartz sleeve

The open ended quartz sleeve works with water sterilization filters

A reflector in the lamp unit improves durability

This is absolutely necessary to not only avoid operating and measuring errors

Magnifying (cheater) lens compatible

Current-USA - Gamma 40W Pond UV Light Bulb for Germicidal Water Treatment Select Product Below:Quartz Sleeve The open ended quartz sleeveGuaranteed Replacement Ultraviolet (UV) Bulb 4 Pin on a Single End 41 Watts 33. 2 Inch Length Lamp Worry Free Performance for 1 Year Product Overview: Specifications: Compatible With: Wattage: 41 Watts Wavelength range: 254NM Length: 33. 2 inches (843. 3mm) Base: 4 pin on a single end Base Material: Ceramic Bulb Shape: T5 Average Lifespan: Up to 10,000 hours Current USA Gamma 40W UV Light Bulb is 41 watts and 100% compatible with germicidal OEM Water