Viqua 602810-104 Authentic OEM UV Lamp & Sleeve Replacement Kit for Ultraviolet Systems F, F+, F4, F4+, F4-V & PRO15Viqua 602810 104 Authentic OEM UV Lamp & Sleeve Replacement Kit for Ultraviolet Systems F, F+, F4, F4+, F4 V & PRO15. This lamp and sleeve replacement kit provides a convenient bundle to get your ultraviolet system back up and running smoothly. Protect you and your family from unwanted water contaminants with ultraviolet filtration. Lamps and sleeves should be replaced once a year to ensure that your system continues to perform optimally. Do not use