【Compatibility】 This LCF replacement filter pack is compatible with Waterdrop TST-UF and TST-B 3-stage under sink water filtration systems. It replaces Waterdrop WD-P1, WD-C3, and WD-U2 filters.
【Complete 4-Pack Set】 Includes 4 replacement filters: 2 PP sediment filters, 1 carbon block filter, and 1 UF membrane filter. This convenient set provides the key filter cartridges needed for routine system maintenance and replacement.
【Multi-Stage Filtration】 The PP sediment filters help reduce rust, sand, and larger particles; the carbon block filter helps reduce chlorine, bad taste, and odor; and the UF membrane filter helps reduce fine particles and contaminants larger than 0.01 micron while retaining beneficial minerals.
【Long-Lasting Performance】 Designed for long-term daily use, this replacement pack helps maintain clean, fresh-tasting water and stable filtration performance. Actual filter life may vary depending on local water quality and household water usage.
【Easy Replacement】 Replacing the filters is simple and quick. Unscrew the filter housings, remove the old cartridges, insert the new filters into the correct positions, and flush the system for 5–10 minutes before use. Follow your system manual for proper installation order.
Shipping takes place within 3-5 business days. If there is a problem with the shipment of the product, we will notify you via the email address you entered when ordering.
🚚 Is free shipping available?
We do not currently offer free shipping. However, this may be added at some point. We apologize.
🔧 How can I get a tracking number for my order?
If your order has been shipped, we will add the tracking number to your order and notify you via the email address you entered when ordering.
🛡️ How do I process a return or exchange?
For returns or exchanges, please contact us within 14 days of receiving the product, along with a receipt or screenshot of the purchase, and a photo of the product with the packaging or tag intact.
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