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Waterdrop RF10/RF15/RF17 Water Filter Replacement for Waterdrop Under Sink Water Filtration system
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Waterdrop RF10/RF15/RF17 Water Filter Replacement for Waterdrop Under Sink Water Filtration system


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  • Each Undersink Water Filter Has a Maximum Service Life of 1 Year Or 8,000 Gallons.
  • The undersink water filter is designed to fit Waterdrop Undersink Water Filtration System
  • Waterdrop Undersink Water Filtration System uses innovative five-stage filtration. Tested against NSF standards, this undersink water filter reduces chlorine, heavy metals and chemical contaminants such as fluoride.
  • Activated carbon block and other advanced filter media ensure efficient and safe filtration. KDF effectively keep filter sanitary. The BPA-free, lead-free material ensures more reliable use from the inside out.
  • The tested full flow rate of this undersink water filter is 2.0 gpm at 60 psi. The fast and stable water supply provides pure and fresh water that tastes like spring water.
Established in 2015, Waterdrop has grown to become the most popular and diversified brand in the replacement filter industry. We have a unique global footprint and sell our products in more than 20 countries worldwide. We are dedicated to delivering a sustainable, industry-leading water purification systems by enhancing water quality and contributing to a healthier future.

Please note that this Undersink Water Filter cannot reduce TDS.

TDS stands for total dissolved solids. It is composed of inorganic salts and a small amount of organic matter. This undersink filter cannot lower the TDS value because it reduces harmful substances while retaining minerals such as potassium, calcium, sodium, and magnesium, which are beneficial for your health.
Waterdrop Undersink Water Filter
Saves money
You’ll pay only 5¢ per day for the undersink filter replacement and your water quality will improve with each passing day. Enjoy pure and healthy drinking water for a long time.
3-second filter replacement
The undersink filter replacement is as user-friendly as it gets. Innovative system design allows you to replace this undersink water filter within only 3 seconds. The push-to-connect fittings make installation and replacement easier than ever, saving you time and effort. No additional tool needed!
Stable and fast water flow
The undersink water filter has a stable water flow and high filtration efficiency. The tested full flow rate is 2.0 gpm at 60 psi. You’ll get filtered water without the wait.
Compatible with WD-UA/UB/UC
The undersink water filter is designed to fit Waterdrop Undersink Water Filtration System (all WD-UA/UB/UC series). Compatible with all three methods of connection, this undersink filter brings you purified water from your original faucet, your dedicated faucet, or your refrigerator. Get easy access to clean, safe, and healthy purified water with Waterdrop!
The five-stage filtration ensures a great user experience.
With a filtration accuracy of 0.5 μm, the Waterdrop Undersink Water Filter reduces lead, chlorine, taste and odor, sediment, fluoride, rust, arsenic, and other heavy metals. You don’t have to worry about the safety of the filtered water.
The undersink filter also retains minerals that are essential to your body, such as potassium, calcium, sodium, and magnesium. Enjoy fresh, healthy water with Waterdrop.
  • Calcium is indispensable to the building of bones and teeth, it also plays a vital role in the physiological and biochemical processes of organisms and cells.
  • Potassium is vital for the functioning of all living cells. It helps maintain a normal heartbeat and the blood’s pH level. It is also an important element in the synthesis of protein.
  • Sodium can stimulate nerves and muscles, regulating osmotic equilibrium and pH and promoting the absorption of nutrients such as glucose and amino acids.
  • Magnesium is one of the most abundant elements in the human body. It stabilizes healthy muscle and nerve function and helps maintain a normal heartbeat.
5X longer service life than other systems
According to the EPA, an American family uses 18-22 gallons of tap water every day. With a filtration capacity of 8,000 gallons, the Waterdrop Undersink Water Filtration System can meet a tap water consumption of 22 gallons a day, which will satisfy your daily water needs. Meanwhile, other undersink filtration systems claim that they have a filtration capacity of 1,500 gallons, producing 4 gallons of filtered water a day, which actually cannot satisfy your daily water needs.
Customer Reviews
*Some reviews are from for the same product.
Replacing a two filter system, and I think this is better
I had a two stage filter before, and it sprung a leak, so it was time for a replacement. This filter has great flow - I would say twice as fast as my old filter. It really tastes great too. Obviously, I have no idea if it lives up to it's claims for removing the heavy metals and other stuff, but I taste no fluorine - really tastes great! Replacement filters appear to be a good, fair price for 8000 Gallons. Also, unlike reverse osmosis filters, it is silent when not running. I'd recommend this to any reasonable person.
Good filter
Works exactly like I needed it to. Water is clean and refreshing
pre filter for water heater
I installed this as a filter for a small on demand water heater, this should extend the life of my heater and make maintaining it much easier, it installed quickly.
Does the job
We have lower water pressure in our home, it would take an uncomfortably long time to fill a glass of water from the fridge. We put this under the sink on the cold changer!! It was easy to install, does not take up very much space, and does not require a third waterline / new hole in the counter top.
Money Well Saved
Given what I was going to spend on a whole house filter system this was just more convenient. Install was easy based on directions, just use SharkBite fittings and save a lot of frustration.
Waterdrop Undersink Water Filtration System