PETKIT Upgraded Filter Units 3.0 Review: Worth the Swap?

The PETKIT Upgraded Filter Units 3.0 is a solid pick for keeping your pet’s water fresh and clean. With a 4.7-star rating, it’s a reliable choice that won’t disappoint.

These filters are built for PETKIT owners who want genuine, original materials and better filtration. The standout strength is the multilayer system that catches pet hair and impurities so your pets always drink cleaner water.

• Includes 5 genuine PETKIT 3.0 filters for multiple fountains.
• Works with eversweet 2s, 3, pro, solo, and more.
• Double filter components and high-density micropore remove impurities.
• Soak for 10 minutes before use; replace monthly.
• LED indicator reminds you when it’s time to swap.

Below, we’ll break down the compatibility, filtration performance, and replacement tips. That way, you’ll know exactly what to expect from this filter pack. For a broader look at top-rated options across brands, see our guide to the best pet water fountain filters.

What Makes the PETKIT Upgraded Filter Units 3.0 Worth Your Attention

These replacement filters are built to keep your PETKIT fountain running clean and your pet’s water tasting fresh — with a few practical upgrades that make a real difference in daily use.

• Genuine Original Materials: Unlike some third-party filters that cut corners, these units use the same genuine materials PETKIT designed for their fountains, so you’re not gambling with build quality.
• Broad Compatibility: This filter 3.0 works across the PETKIT eversweet 2s, eversweet 3, eversweet 3 pro, eversweet solo, solo 2, solo se, and pure drink cat dog water fountain — so it’s a safe fit for most current PETKIT models.
• Multi-Layer Filtration: The improved system uses double filter components plus a high-density micropore layer to catch pet hair and most other impurities, helping your pet drink cleaner, fresher water.
• Pre-Use Soak Required: Before the first use, just soak the new filter in clean water for at least 10 minutes — that simple step preps it to work properly from day one.
• Monthly Replacement Cycle: Plan to swap the filter every 30 days in normal use, though the LED indicator will light up when it’s actually time to change it based on how the filter is holding up.
• Reset After Each Swap: After installing a new filter, remember to reset the device so the replacement timer restarts correctly — it only takes a second.
• 5-Pack Convenience: You get five filters in the package, which covers about five months of regular replacements before you need to reorder.
• Weekly Maintenance Tip: For best results, clean the fountain and refresh the water once a week — it helps protect the pump and keeps the filter working at its peak.

If you already own a compatible PETKIT fountain, this 5-pack gives you a reliable, no-fuss supply of replacement filters that match what the fountain was designed for.

Where the PETKIT Upgraded Filter Units 3.0 Impress (and Where They Don’t Quite)

How the PETKIT Upgraded Filter Units 3.0 Keep Your Pet’s Water Truly Fresh

What Makes the Filter 3.0 Different From Older Versions

This upgraded filter uses a multi-layer filtration system with two filter components and a high-density micropore layer. It’s built to catch pet hair and most other impurities before they reach your pet’s bowl.

You’ll notice the genuine original materials right away. Many cheaper filters cut corners, but PETKIT sticks with what they designed for their fountains.

Reviewers rate this highly, with 87% giving it 5 stars for consistent performance. The improved design means fewer clogged pumps and less frequent cleaning for you.

Which PETKIT Fountains Work With These Filters

You’re covered if you own most recent PETKIT models. This filter fits the eversweet 2s, eversweet 3, eversweet 3 pro, and eversweet solo lines.

It also works with the solo 2, solo se, and pure drink fountains. That broad compatibility makes it a safe bet if you upgrade your fountain later.

Just double-check your model number before ordering. The package includes five filters, so you’ll have a few months of replacements ready.

Setting Up and Replacing the Filter the Right Way

Don’t skip the prep step. You should soak the new filter in clean water for at least 10 minutes before using it in your fountain.

Plan to replace it every 30 days in normal mode. The LED indicator on your fountain will remind you when it’s time, so you won’t have to guess.

After swapping in a fresh filter, reset the device to keep the indicator accurate. Most buyers find this routine easy once they’ve done it once.

Real-World Performance and Long-Term Value

Pet owners say the water stays clear and odor-free between weekly cleanings. The micropore layer handles fur and debris better than older filter designs.

You’ll still need to clean the fountain and replace water weekly. That protects the pump and extends the life of each filter unit.

With a 4.7-star average rating, most users agree these filters deliver reliable results. The 3% who gave low marks typically mention fit issues with older fountain versions.

Quick Specs at a Glance

Specification	Detail
Compatible Models	Eversweet 2s, 3, 3 Pro, Solo, Solo 2, Solo SE, Pure Drink
Package Contents	5 replacement filter units
Filter Type	Dual component + high-density micropore
Replacement Interval	Every 30 days (normal mode)
Item Weight	9.14 ounces per package
First Available	February 14, 2023

Bottom Line: Are These Filters Worth Your Money?

If you own a compatible PETKIT fountain, these filters are a solid, reliable choice backed by strong customer satisfaction. The multi-layer design genuinely reduces fur and impurities.

The soak-before-use step and monthly replacement are small habits that pay off. You’ll get cleaner water and a quieter pump compared to off-brand alternatives.

For most pet owners, the 5-pack provides good value over time. Just keep your fountain clean weekly and you’ll maximize both filter life and your pet’s hydration. For a deeper dive into the pros and cons, check our article on are cat water fountains worth it.