Siemens - LP4220 UV Light Bulb for Germicidal Water Treatment H42C3F6 The ceramic bulb has four

The ceramic bulb has four pin on a single end for better purification and the system is compatible with OEM Water sterilization filters

Base Style: Single pin double ended

or place the substrate closer to the mountable unit

The Purely UV PUVLB515 Air/Water Treatment Germicidal UV Light Bulb comes with a G13 medium bi-pin base and has an average lifespan of 10

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Siemens - LP4220 UV Light Bulb for Germicidal Water Treatment H42C3F6 The ceramic bulb has fourGuaranteed Replacement Ultraviolet (UV) Bulb 4 Pin Single End 10 Watts 8. 35 Inch Length Lamp Worry Free Performance for 1 Year The Siemens LP4220 UV Light Bulb For Germicidal Water Treatment is a guaranteed replacement UV bulb that gives you worry free performance for an entire year. The 10Watts bulb has a length of 8. 35" and a four pin on a single end base. The ceramic bulb has low mercury dosage to meet environmental demands. This method of