Pura UV22 Replacement UVC Light Bulb Type:US Made Replacement Lamp Quartz Diameter: 17mm Twin

Lamp Quartz Diameter: 17mm Twin Tube

Guaranteed 100% Compatible Replacement Ultraviolet (UV) Lamp - Mercury Wavelength - 42 Inch Arc Length - 46 Inch Total Length

Both lights are guaranteed to be 100% compatible with the Pura UVBB-R4

Outer Diameter: 22

Pura UV22 Replacement UVC Light Bulb Type:US Made Replacement Lamp Quartz Diameter: 17mm Twin4 Pin on a Single End 23 Watt Germicidal Water Treatment Bulb The Pura UV22 Generic Replacement UVC Light Bulb is a 23 Watt germicidal water treatment bulb that has four pins on a single end. With a total length of 18. 23 inches, CureUV. coms UVC light bulb is an effective way to sanitize water without altering the waters pH, taste, or chemistry. This is because using UVC light to disinfect water is a purely physical process and is a far better option