iSpring UVF11A UV Ultraviolet Light Water Filter with Smart Flow Control Switch 11W, 110V, 10-INCH

Very high quality and solid metal construction design. Added this to my Apec RO system; it was very easy to install and works very well with the system with all included tubes and fittings easily able to accommodate the water flow rate of the RO system. Had the system installed for two years now with no issue such as leakage etc. I've observed a noticeable improvement in the taste of the water and also noticed that our refillable water bottles stay cleaner and less "funky" for longer periods of time. The flow controlled on/off timer is really nice allowing the UV light to shut off when not in use as to not heat up the water and filter, like in some other systems. Price feels a little bit steep, but might be worth it for such a high quality long lasting product.

I installed the iSpring UVF55FS UV Water Filter on our well supply, and the difference has been night and day:Powerful UV Sterilization: The 55 W lamp neutralizes bacteria, viruses, and other pathogens instantly—no more worry about microbes in every glass.Smart Flow Sensor Switch: The UV only powers on when water runs, extending lamp life and saving energy.High Flow Capacity: At up to 12 GPM, it easily handles simultaneous showers, faucets, and appliances without pressure loss.Whole-House Protection: Every tap—from kitchen to outdoor hose—now delivers clean, odor-free water.Easy Installation & Maintenance: Straightforward plumbing hookups and simple annual lamp replacement make upkeep a breeze.Since installation, that “well water” smell is completely gone, and my wife happily drinks straight from the tap for the first time—no more pre-filtering or bottled water.Room for Improvement:None—this system has worked flawlessly from day one. Highly recommend for anyone on a private well!

We're very pleased with this purchase! Along with the fact that the item arrived three days before the earliest projected delivery date, the actual assembly and installation of this iSpring UV system worked great.The instructions that come with the UV system are written expecting integration with a more sophisticated ballast. Our installation only uses the simple ballast supplied with this unit. If you're just going to be using the ballast with this unit, you can skip a bulk of the assembly steps outlined in the user's manual.Most of trying to figure out how to assemble and install this unit required understanding how it works. At first, I thought perhaps I needed to undo the end of the unit where the black cap installs (see picture). I didn't understand that inside the unit, the glass chamber is already installed. There's no need to disassemble anything! Just take out the UV lamp, open the bag with the green wire, and attach the wire connectors to either end of the lamp. Connect power and then press the black cap over the end of the assembly. This part of the installation is complete.This unit does not come with the 1/4" tubing. If you don't have any handy with your existing system, you'll need to purchase it separately. The tube connectors are fantastic! There's nothing to do to ensure a leak-free connection. Be sure you cut proper lengths first and do NOT expect to dry fit them! Once you press them in the fittings, they cannot be easily removed! I cut the proper lengths for our installation, pressed them between the flow control and the inlet, and then the other end of the flow control going to the water source. I then connected the faucet tube to the outlet. Once that's complete, you're done! Just mount the ballast, be sure the UV chamber is installed in a stable location, and then let the water flow!I experienced a very minor, slow leak at the elbow fittings. A simple twist to tighten them (they're threaded into the stainless steel housing), and the leak was fixed.To ensure things are working, look at the right-angle fittings where the flow control is connected. When you turn the water on, you'll hear a quiet "click" as the flow control initiates the ballast to turn the light on. You'll see the right-angle connector illuminate blue after the ballast clicks. When you turn the water off, the light goes off. Once you see the light go on and off with the water flow, you know you're installation was successful.I recommend writing on a Post-It note the date the UV light went into service and sticking it to the unit so you'll know when you need to order a replacement lamp. The lamp you'll need is a UVB11, and it should be replaced every 12 months.I'll explain a little bit about our installation, in case it might benefit others in a similar situation.Our installation replaced a much cheaper UV chamber attached to a three-stage filtration system. The unit we replaced was a plastic assembly with a 4W lamp that illuminated 24 hours a day. Because it was constantly on, it heated the water to a hot degree, which required us to turn the water on and wait a minute or so for the hot water to flow out. This was a waste of water and a waste of power! One tip: if you look on the Internet, you'll see this unit selling for less. BE CAREFUL! This unit *is* sold for less, but without the flow control device. I strongly recommend purchasing this unit with the flow control, as shown on Amazon. Without the flow control, your UV lamp will illuminate 24 hours a day, like our old unit did. This iSpring UV system is an 11W system that blasts the water with a more powerful dose of UV light. Once you turn your water on, it disinfects more efficiently than many other cheaper units. The unit we replaced had a proprietary light and wire harness the company wanted $100 to replace each year. This was a ridiculous price! The iSpring unit you're looking at now allows for *you* to replace just the light itself, painlessly, for far, far less money (about $35 or less, at the time of this writing)!We highly recommend this unit. If we run into any problems with it, I'll post an update here. If you see no update, then you can be sure it's still functioning properly.

I ordered this UV Filter as the last leg of my Whole House Water Filtration system. It was working great until the Ballast with Flow Sensor stopped working a few months after the installation, which kept the UV bulb running 24/7 and reduced the life of the UV bulb. I contacted the iSpring customer service and spoke with Nick. He was super helpful. He shipped out a 3rd generation Ballast with Flow Sensor, along with 2 UVB55FS bulbs. The order was delivered within a few days and I replaced all the broken parts. So far everything is working great. I appreciate the help I got from Nick. Will definitely buy their products again in the future. Thank you Nick!

I've had this installed for a few months and my cat and myself notice a nice improvement when added to the existing system. The value is great for what it is. So far I've not had any issues. The bulbs work great after daily use. There's no odor to the water and doesn't affect flow. Decent product I would recommend to anyone wanting a little better quality water.