Watts - Hydro-Safe HSUV-SS-5-1 UV Light Bulb for Germicidal Water Treatment Select Product Below:Replacement Electrical Ballast Base Style: 4 pin stepped

Base Style: 4 pin stepped on a single end

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Watts: 3500W

Guaranteed 100% Compatible Replacement Ultraviolet (UV) Lamp - Mercury Wavelength - 9 Inch Arc Length - 14

Watts - Hydro-Safe HSUV-SS-5-1 UV Light Bulb for Germicidal Water Treatment Select Product Below:Replacement Electrical Ballast Base Style: 4 pin steppedGuaranteed Replacement Ultraviolet (UV) Bulb 4 pin single end 28 Watts 18. 5 Inch Length Lamp Worry Free Performance for 1 Year The Watts Hydro Safe HSUV SS 5 1 UV Light Bulb For Germicidal Water Treatment is a 28 watts water treatment bulb that has a wavelength range of 254 nm. This T5 T6 shaped bulb is made using ceramic and has a length of 18. 5 inches. With a four pin on a single end base, the ceramic lamp bulb is 100% compatible with germicidal