KJF Filter, Replacement for KJ600 Reverse Osmosis Instant Hot Water Dispenser System, 12-month Lifetime

The Waterdrop WD-KJF replacement filter has been fantastic for our Waterdrop WD-KJ600 reverse osmosis hot water dispenser. We use our dispenser every single day, and this filter has performed flawlessly. If you want clean, fresh, great-tasting water, this filter absolutely delivers. One of the things I appreciate most is the long lifespan. The filter is designed to last up to about a year, which is great because you’re not constantly replacing cartridges. Even with daily use in our home, it maintains excellent performance and consistent water quality. The water taste is noticeably better after filtration. It removes the unpleasant taste and impurities you sometimes get with tap water and produces crisp, clean, refreshing water every time. Whether we’re making hot tea, coffee, or just drinking a glass of water, the difference is obvious. Installation is also quick and simple. The cartridge fits perfectly into the Waterdrop dispenser and takes just seconds to replace. No complicated setup, tools, or adjustments required — just swap the filter and you're good to go. Another thing that stands out is the reliability of Waterdrop products in general. The WD-KJ600 dispenser is already one of the best instant hot water systems available, and this filter keeps it performing exactly the way it should. The build quality feels solid and dependable. Because we use our unit daily, having a filter that consistently provides pure, great-tasting water is extremely important. This one has exceeded expectations and continues to work perfectly. If you own the Waterdrop WD-KJ600 dispenser, this replacement filter is absolutely the way to go. It lasts a long time, installs easily, and produces excellent tasting water every day. I highly recommend it to anyone who wants reliable filtration and fresh, clean water at home.

I bought this as a replacement for my WD-KJ600 system and it works perfectly. The installation was straightforward, and I noticed an immediate improvement in the water clarity and taste.

Very easy to install. Got fresh water again

Waterdrop filters are the best. We have had really good results water tastes great. What’s even better is their customer service. Although they are not all the same but we have had really good exp. We had a rep named Doreen and she was so helpful. I had some issues with my KJ600 she was so helpful quick to assist and made sure we had a good solution. Great company!

Easy to replace

Kind of pricey, but very easy to swap unlike old school RO systems.

This is correct filter replacement

Easy to replace and keeps water tasting great! First filter that came with the system lasted a year. Be warned, the filter is heavier than expected. Order arrived in timeframe that was promised. Price throng Amazon was comparable to ordering from vendor.

Exceptional Service & Sleek Design – Highly Recommended! I purchased the WaterDrop WD-KJ600 RO Instant Hot/Cold Water Dispenser System about 18 months ago, and while the cold water function continued working perfectly, the hot water boiler unfortunately stopped functioning. Hoping it was a filter issue, I bought a new one but that didn’t solve the problem. I reached out to WaterDrop support and spoke with a technician named Harper, who patiently walked me through multiple troubleshooting steps. He ultimately diagnosed the hot water boiler as defective. Although my warranty had expired, Harper offered me a full replacement unit for just $170 USD—a deal I gladly accepted. To my surprise, the new unit arrived within a week, complete with a faucet and brand-new filter. The speed and professionalism of the service blew me away. Harper even suggested I return the filter I had just purchased another thoughtful gesture. As for the product itself: the WD-KJ600 is sleek, space-saving, and incredibly easy to use. The water tastes fantastic, the faucet design is modern and intuitive, and the instant hot/cold functionality is a game-changer. Highly recommend both the product and the company behind it. Stellar customer service and a top-notch water system!

Great. Genuine. Easier than ordering from their website