Best Pool Cleaner Replacement Brushes 2026: Dolphin & Polaris Picks

Quick Answer: Most Dolphin owners should replace with the standard PVC brush (part 6101602/3295-046) at $43.99 each, per Maytronics’ own listing — it fits most of the current lineup including the Nautilus CC Plus, Premier and Endeavor. If your pool has a fiberglass, tile or glass surface, use the Wonder Brush pair (6101610-PAIR) at $503.99 instead, engineered specifically for smooth surfaces per Maytronics’ spec sheet. Polaris owners need to match their series: the 9300/9350/9400/9450 Sport robotic brush set (R0517300) runs $38.89-$52 depending on retailer, while the Quattro Sport/P40 roller brush assembly (R0838900) is $49.95 on sale (from $64.95) at ePoolSupply.

A worn brush is one of the easiest ways a robotic or pressure-side pool cleaner quietly stops doing its job. The motor still runs, the cleaner still moves, but flattened or rounded bristles stop agitating algae and fine debris loose from the pool surface — so the filter basket comes up nearly empty even though the pool is visibly dirtier than it should be. Brushes are a sacrificial wear part by design, and getting the right one comes down to two things: matching it to your cleaner’s exact model, and matching it to your pool’s surface material.

Pool cleaner brushes at a glance

Best pool cleaner replacement brushes of 2026

1. Dolphin Standard PVC Brush (6101602/3295-046) — best for most Dolphin pools

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This is the default replacement for most Dolphin owners because it covers the broadest slice of the current lineup and costs a fraction of the premium alternative. The interlocking-tab design means it’s a genuine at-home swap, not a job that needs a technician. The one thing to double check: it’s built for standard concrete, gunite and plaster surfaces, so if your pool is fiberglass, tile or has a glass finish, look at the Wonder Brush instead rather than assuming this one fits every surface type.

2. Dolphin Wonder Brush (6101610-PAIR) — best for fiberglass, tile & glass pools

Don’t buy this because it sounds like the “better” upgrade — buy it because your pool surface needs it. A stiffer standard brush on a fiberglass or tile pool risks scuffing a surface that’s meant to stay glossy, and the Wonder Brush’s diagonal foam-and-brush hybrid construction is built to grip smooth surfaces without that risk. If you own a Dolphin CC Plus or Sigma on a concrete or plaster pool, this isn’t the right part — see our Dolphin Nautilus CC Plus review or the Dolphin parts guide for the standard-surface parts you actually need.

3. Polaris Sport Brush Set (R0517300) — best for Polaris robotic Sport series

This is the brush set for the Polaris Sport-series robots specifically — check your model number before ordering, since Polaris’s naming (Sport, Quattro Sport, P40) covers both robotic and pressure-side machines that use completely different brush parts. For the current Polaris robotic lineup and pricing, see our best Polaris pool cleaner guide, or the Polaris parts guide if you’re also shopping tires, bags or control boards.

4. Polaris Quattro Sport Roller Brush Assembly (R0838900) — best for pressure-side Quattro Sport

The Quattro Sport is Polaris’s pressure-side flagship, and its side-mounted roller brushes wear differently than a robotic cleaner’s drive brushes since they’re constantly scrubbing walls and steps under pressure-fed flow. Shop around before buying — the same OEM part carries a real spread across retailers, so it’s worth a quick price check rather than buying from the first listing you find. See our best Polaris pool cleaner guide for where the Quattro Sport fits in the current lineup.

How to pick the right brush

• Match the surface, not just the brand. Dolphin’s own lineup splits into a standard PVC brush for concrete/gunite/plaster and a completely different Wonder Brush for fiberglass/tile/glass — the same logic applies across brands. Check your pool’s surface material before ordering.
• Match the exact model, not just the product line. “Polaris brush” isn’t specific enough — the Sport-series robotic set (R0517300) and the Quattro Sport pressure-side roller assembly (R0838900) are different parts with different mounting hardware.
• Replace in pairs, even if only one looks worn. A cleaner’s traction and cleaning coverage depend on both brushes wearing evenly — swapping only the more damaged one can leave the drive train unbalanced.
• Expect real retailer price spread on identical parts. The Polaris parts here ranged 20-65% between retailers for the exact same part number — check at least two sources before buying, especially on the pricier OEM assemblies.
• Inspect monthly, don’t wait for a full season. Rounded or flattened bristles stop agitating debris even while the cleaner keeps running normally, so a monthly visual check catches the problem before your filter basket starts coming up suspiciously empty.

The bottom line

Most Dolphin owners should default to the standard PVC brush at $43.99 unless their pool has a fiberglass, tile or glass surface, in which case the $503.99 Wonder Brush pair is the correct — if considerably pricier — choice. Polaris owners need to identify their exact series first: the R0517300 Sport brush set ($38.89-$52) for robotic 9300/9350/9400/9450 models, or the R0838900 roller brush assembly ($49.95 on sale) for the pressure-side Quattro Sport/P40. None of these parts are interchangeable across brands or even across a single manufacturer’s own product lines, so match the part number to your model before you order.

Still building out your cleaner’s accessory kit? See our best pool cleaner caddy guide for storage and cable management, or the best pool cleaner filter guide if your filtration needs a refresh at the same time.