Replacement Filters for under sink 3-stage Ultrafiltration Stainless Steel Water Filter System

About this product

Model number WD-P1, WD-U2 , WD-C3 Operating temperature 40-100℉ (5-38℃) Working pressure 15-87 psi/ 0.1-0.6 MPa Flow rate 1.5 GPM (tested under 60 psi) Feed water requirement Municipal tap water Filter capacity First P1 filter: up to 6-8 months Second U2 filter: up to 12 months Third C3 filter: up to 12-24 months Show More Information This stainless steel 3 stage filtration system is currently the most popular type of filter. Unlike common plastic systems on the market, the Waterdrop 3-stage stainless steel water filtration system is made of lead-free stainless steel, which makes the system resistant to corrosion and compression. It is durable, strong, and less prone to cracking. At the same time, the thick sealing ring in the cap prevents leakage. This Waterdrop 3-stage undersink water filter has 6 layers of premium filtration material, including non-woven fabric, PP cotton, activated carbon block, and an ultrafiltration membrane. The 0.01μm precise ultrafiltration membrane filters out most harmful substances larger than 0.01μm, such as rust, sediment, chlorine taste and odor, benzene, bacteria, and colloids. It can also partially reduce algae, chloride, copper, lead, and mercury. The activated carbon block and PP cotton effectively reduce chlorine, heavy metals, chemicals, cysts, odor, rust, and large particles in your water while improving the taste. The Waterdrop 3 stage water filter system has recyclable housing. You need to replace only the inner filter. The system can last for a long time. The PP filter lasts 6-8 months, the UF filter lasts 12 months, and the CT filter offers an ultra-long life of up to 24 months, which may vary according to local water quality. If you are looking for a filter that doesn’t require a drill, this is the best one for you. The system can hang on the wall or stand on the floor. Also, it has a 1.59 GPM water flow. With a complete accessory kit, you can finish the installation without having to purchase extra tools What is the difference between TST-UF and TSA-10? The Waterdrop TSA-10 is an under-sink 3 stage water filter system featuring PP cotton, granular activated carbon, activated carbon block, and KDF. Meanwhile, the Waterdrop TST-UF system adopts an advanced ultrafiltration membrane. With 0.01-micron filtration precision, the system can filter out more contaminants than TSA-10. Also, the TST-UF has stainless steel housing, which is stronger and more durable. What is the difference between the TST-UF and WD-UA? The Waterdrop WD-UA is an under-sink single-stage filter featuring PP cotton and activated carbon block. Meanwhile, the Waterdrop TST-UF consists of a 3-stage filter, which is more effective and powerful. With 0.01-micron filtration precision, the system can filter out more contaminants than the WD-UA. Also, TST-UF has stainless steel housing, which is stronger and more durable. How do I replace the filter for this stainless steel water filtration system? Replacement is easy. Simply twist off the stainless steel housing, remove the expired filter, and insert a new one. The twist-to-lock design makes the replacement process simple and smooth. Twist on the housing when you’re done. How long is the filter life of this 3-stage undersink water filter? The PP filter lasts 6-8 months, the UF filter lasts 12 months, and the CT filter offers an ultra-long life of up to 24 months, which may vary according to local water quality. What contaminants can this 3-stage undersink water filter reduce? This 3-stage undersink water filter effectively filters out bacteria, chlorine, heavy metals, large particles, cysts, sand, rust, sediment, chloramines, asbestos, giardia, chemicals, and more. What are the pros of this stainless steel 3 stage filtration system? The Waterdrop under-sink stainless steel 3 stage filtration system has premium 304 stainless steel housing, which is lead-free, corrosion-proof, and compression-proof. The low lead and cadmium content makes it stronger and durable enough to resist cracking. The thickened sealing ring prevents leakage. If you encounter any problems within the first three years of use, kindly reach out to us and we will solve them. Can the Waterdrop stainless steel water purifier be recycled? Yes, the stainless steel housing can be recycled. When a filter expires, simply replace the inner filter while the housing remains on. Perfect Fit The PP, UF, CT filter are compatible with Waterdrop WD-TST-UF stainless steel 3 stage filtration system. Premium Selected Ultrafiltration Membrane The 0.01 μm ultrafiltration membrane effectively eliminates most contaminants larger than 0.01 μm. Ultra-long Lifespan 3-stage undersink water filters are designed to be discarded once it expires. The PP filters lasts 6-8 months, UF filter lasts up to 12 months, and CT filter offers an ultra-long life of up to 24 months, which may vary according to local water quality. This saves your money and efforts while protecting the environment. Convenient Operation And Simple Replacement You will replace the internal filter in a moment by just unscrewing the external housing, removing the expired filter and installing a new filter. 1.59 GPM Extensive Water Flow The flow rate can get as high as 1.59 GPM, which means you can fill a 8oz cup of water in 2.3 seconds. Water flow remains stable even at high speed.

• 0.01 μm ultrafiltration membrane removes most contaminants larger than 0.01 μm for improved water purity
• Lead-free, corrosion-proof 304 stainless steel housing ensures long-term durability and safety
• 6-layer filtration system with PP cotton, activated carbon, and ultrafiltration membrane for comprehensive contaminant reduction
• Recyclable housing design allows replacement of only the inner filter, extending system lifespan
• Simple twist-on housing and twist-off filter design enable quick, tool-free installation and replacement

Model Numbers

WD P1, WD U2, WD C3

Operating Temperature

40–100°F (5–38°C)

Working Pressure

15–87 psi (0.1–0.6 MPa)

Flow Rate

1.59 GPM

Filter Capacity

P1 up to 6–8 months, U2 up to 12 months, C3 up to 24 months

Material

304 stainless steel, polypropylene (PP)

Photos, details and ratings from Waterdrop Filter, through Shopify.