If you own a Dolphin robotic pool cleaner, you already know that brushes are the unsung heroes of a sparkling pool. Over time, those bristles wear down, and your cleaner starts struggling on walls or leaves debris behind. You might be facing a choice between the newer PVC climbing brushes and the classic Wonder brushes. This guide breaks down the differences between these replacement options, focusing on four top-rated products from brands like MAYTRONICS, Pokin, Dolphin, and XZFYSM. Whether you prioritize aggressive wall climbing or gentle yet thorough scrubbing, we will help you find the right set.

Before we dive into the specifics, it helps to understand the broader landscape. For a deeper look at how these brushes compare to other types, see our dolphin active brush vs standard brush.

Buying Guide: Choosing Between PVC and Wonder Brushes

Brush Material and Construction

The most noticeable difference is the material. The Dolphin Genuine Replacement Part (blue climbing brushes) are made from rigid PVC, designed to dig into algae and stubborn dirt on walls. In contrast, the standard grey brushes (like the Dolphin Genuine Replacement Part 6101641-R2) typically use a softer, more flexible nylon material that is gentler on vinyl liners and fiberglass surfaces.

Hard PVC bristles excel at scrubbing, but they can be too aggressive for delicate pool finishes. If you have a concrete or gunite pool, the PVC brushes will shine. For vinyl or painted surfaces, the softer Wonder brushes are a safer choice.

Compatibility with Dolphin Models

Not every brush fits every Dolphin model. The blue climbing brushes (6101660-R2) are compatible with commercial models like the 2×2, Heavy Duty, and 3001. The grey brushes (6101641-R2) are standard for residential units such as the Nautilus Plus, Premier, and many others. Always verify your cleaner’s model before purchasing. The aftermarket options like the Pokin 6101641-R2 set offer broad compatibility across dozens of Dolphin and Prowler models, which can be a deciding factor for owners with older machines.

For more insight on choosing the right brush for your model, check out our best pool cleaner wall climbing brush article.

Climbing Performance vs. Gentle Cleaning

The PVC climbing brushes are specifically engineered for traction. Their stiff bristles help your Dolphin grip and climb vertical surfaces, making them ideal for pools with heavy algae buildup or textured walls. The Wonder brushes, on the other hand, provide a balanced cleaning action that reduces wear on the cleaner’s motor and leaves a finer finish on floor and walls.

If your pool sees regular use and you value efficiency over brute force, the softer brushes are perfectly adequate. But if you frequently battle stubborn calcium deposits or black algae, upgrading to the PVC set could save you time and manual scrubbing. For a broader look at brush performance, see our active brush vs passive brush pool cleaner comparison.

Also consider the aftermarket alternative from XZFYSM, which offers a grey brush replacement designed to mimic the OEM feel at a lower cost. While not as aggressive as the PVC option, it can be a reliable budget-friendly choice for routine maintenance.

Final Thoughts

The best brush set depends entirely on your pool’s surface and your cleaning priorities. For owners of commercial or heavily soiled pools who need maximum wall-climbing power, the Dolphin Genuine Replacement Part blue climbing brushes are the clear winner. If you run a residential Dolphin and prefer a gentle yet effective clean that protects your liner, the Dolphin Genuine Replacement Part grey brushes deliver reliable performance and broad compatibility. Both sets are backed by strong user ratings and proven durability, so you can shop with confidence.

Frequently Asked Questions

Are PVC climbing brushes better than standard Wonder brushes for my Dolphin?

Not necessarily. PVC brushes provide superior scrubbing and wall climbing, especially on concrete or gunite pools. However, for vinyl or fiberglass surfaces, the softer Wonder brushes are gentler and prevent scratching. Choose based on your pool’s finish and the level of buildup you deal with.

How do I know which replacement brush fits my Dolphin model?

Check your cleaner’s model number and compare it to the compatibility lists provided by each manufacturer. The blue climbing brushes (6101660-R2) fit commercial models, while the grey brushes (6101641-R2) fit most residential models like the Dolphin Nautilus Plus, Premier, and Quest. If you are unsure, our dolphin OEM vs aftermarket brushes guide offers detailed model charts.

How often should I replace the brushes on my Dolphin pool cleaner?

As a rule of thumb, inspect your brushes every 2026 and replace them when you notice reduced climbing ability, visible wear, or bent bristles. In heavy-use pools, a seasonal replacement is common. Soft brushes tend to wear faster than PVC ones.

Can I mix PVC and Wonder brushes on the same cleaner?

It is possible but not recommended, as it can create uneven cleaning patterns and strain the cleaner’s drive system. Stick to matching pairs for balanced performance and long life.

For more comparisons, visit our Comparisons category to explore other brush and filter analyses.