Ultra Dynamics - UDS-8 UV Light Bulb for Germicidal Water Treatment Select Product Below:Quartz Sleeve are manufactured in the USA

are manufactured in the USA and have a predictable lifespan

The Brewer Part # 1860C UV Curing Lamp Bulb is a 100% guaranteed compatible replacement lamp bulb that has an 18 inch arc length and a total length of 23

18 inches in length

This 9 watt Tetra PL-S9W UV bulb is 100% compatible for use with Tetra pond sanitizers and water purifiers

Eltosch 30 inch UV lamp (500 WPI) - OEM part number 12500392 - Drawing (PDF)

Ultra Dynamics - UDS-8 UV Light Bulb for Germicidal Water Treatment Select Product Below:Quartz Sleeve are manufactured in the USAGuaranteed Replacement Ultraviolet (UV) Bulb 4 Pin on a Single End 41 Watts 33. 2 Inch Length Lamp Worry Free Performance for 1 Year The Ultra Dynamics UDS 8 UV Light Bulb For Germicidal Water Treatment is a 41 watts UV bulb that has a four pin on a single end base. With ceramic as its base material, the germicidal water treatment bulb has a wavelength range of 254nm. The light bulb has a length of 33. 2 inches and an average lifespan of 10,000 hours.