Hallet Upstream NC15-75 Replacement Germicidal Lamp Item:Ballast It emits a short wavelength

It emits a short wavelength of 253

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Tube Diameter: 1 inch

Dichroic Reflector Set for Ushio MHL-900 Metal Halide UV Lamp

Hallet Upstream NC15-75 Replacement Germicidal Lamp Item:Ballast It emits a short wavelengthReplacement Ultraviolet Bulb for Hallett Upstream, model # NC15 75 This generic version of an Ultraviolet (UV) Bulb is a 100 % compatible with the bulb used in the Hallet Upstream system, model no NC15 75. This 4 pin UV Lamp is a 50 watt mercury filled lamp, and with an overall length of 21 inches it is the most cost effective replacement to keep your clean water running. Models: Hallet 15XS, C3000210, E300209, E300210, H300210, Upstream NC15 50,