[Whole House Water Treatment] As the UPGRADED VERSION of UV water filter iSpring UVF55, UVF55FS is a perfect last step to add to your whole house water filtration system and give you the peace of mind of knowing all of the water in your house can be treated at once. [Upgraded Ballast with Flow Sensor Switch] Ensured actual treatment with waters long dwell time in the 37.5-inch 304SS reactor chamber; a 12 GPM flow rate and minimum pressure loss with 1-inch MNPT inlet/outlet design; a quality 55-watt UV lamp(UVB55FS) in durable quartz sleeve has a long bulb life of up to 9,000 hours; upgraded 55W ballast(UVT55FS) with smart flow sensor switch(3 modes: Auto, Move, Stop) makes it easy to control and monitor system performance. Auto is recommended to protect the UV lamp. [Easy Installation and Simple Maintenance] Mounting clips included for easy DIY installation. Annual replacement of the UV lamp and regular cleaning of the quartz sleeve(every 6-12 months) recommended to ensure optimal performance. [Chemical-free, Environmentally Friendly, Affordable, and Reliable]: A green alternative to chlorine treatment. Free of chemical byproducts. Build your trust in water for your entire household by removing risks unable to be addressed by your municipal treatment plant or those born with well water or other natural water sources. Lifetime tech support from iSpring in Atlanta, GA. UV has proven to be a quick, reliable, and cost-effective method of water treatment for both point-of-use (POU) and point-of-entry (POE) systems. ISpring UVF55FS UV water filter protects the whole house against impurities commonly found in private wells as well as city water. For houses with municipal water sources, this UV light water filter provides a great solution against chlorine-resistant impurities so that you and your loved ones get clean water for drinking, washing, showers and more. Ultraviolet (UV) light is an effective chemical-free water treatment step that tackles various water concerns in well water and brings clean water to the house. UV water treatment can give you peace of mind, knowing that you are protected from culprits of water contamination often found in aging infrastructure in many cities. The Advantages of iSpring UV Systems. Effective – Double ended UVC lamp with long work life. Go Green – No waste water; No chemicals added. Cost Effective – Low power consumption. Easy Maintenance – Annual lamp replacement and quartz sleeve care. Reinforced 1 Male NPT threads for inlet and outlet ports, allowing easy installation of the system with reliable pressure-resistant capabilities. Flow rate up to 12 GPM. Included UV lamp offers constant UV output during its lifetime for effective water treatment and optimal system performance. Requires only an annual change of lamp and a periodic change of quartz sleeve. The low operating costs make the system pay for it in no time. Upgraded 55W ballast with smart flow sensor switch(3 modes: Auto, Move, Stop) makes it easy to control and monitor system performance. Step 1:Install one O-ring onto the open end of Quartz Tube. Insert the tube into the SS chamber. Put the other O-ring onto the closed end of the tube. Hand tighten end nuts. Step 2: Connect the 4-pin electrical socket to UV lamp pins. Step 3: Carefully insert the UV lamp into the quartz tube through the open end nut. Hand tighten the black cover cap. Step 4: Insert the black o-ring to the flow switch connector. Step 5: Insert the flow switch on the outlet. Please be aware of the water flow direction. Step 6: Set the button on the control switch to be AUTO, the UV lamp will start working automatically when water flow is sensed. MOVE mode is available if you want the UV lamp to work continuously. Push control switch button to STOP to turn off the UV lamp if needed. After Whole House System On The Main Water Supply Line. Undersink RO System Add-on Filter. The item “ISpring UVF55FS Whole House UV Water Filter with Smart Flow Sensor Switch, 55W” is in sale since Wednesday, June 9, 2021. This item is in the category “Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters”. The seller is “ispringwatersystems” and is located in Cumming, Georgia. This item can be shipped to United States.