Your Dolphin Sigma glides across the pool floor, but lately you notice it leaving streaks or struggling to climb the walls. The culprit is often worn brushes. Replacing them restores that deep clean and saves you from buying a whole new robot. This guide reviews the best Dolphin Sigma replacement brushes for 2026, helping you find the right fit for your pool.

Top Dolphin Sigma Replacement Brushes at a Glance

2
Editor's Pick

BGD 6101641-R2 Grey Climbing Brushes for Dolphin

BGD
9.9 /10
AI Score
AI score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the AI tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
These BGD grey climbing brushes are a direct replacement for Dolphin robotic pool cleaners like the M200, DX3, and DX4, restoring effective scrubbing and wall-climbing traction. Ideal for pool owners looking to maintain peak cleaning performance without buying a whole new robot.
Pros & Cons

Pros

  • Compatible with a wide range of Dolphin models
  • Restores climbing ability and scrubbing performance
  • Affordable replacement compared to buying new robot
  • Two brushes included for complete replacement
  • Easy installation with proper fit check

Cons

  • Compatibility may vary by robot revision, so verification is required
  • Does not include other parts like tracks or filters
  • No customer reviews yet to confirm long-term durability
Detailed Review

The BGD 6101641-R2 Grey Climbing Brushes are a replacement set designed for Dolphin robotic pool cleaners, specifically models like the M200, DX3, and DX4. They come as a two-pack to replace both front and rear brushes, restoring the robot's ability to scrub pool floors and climb walls effectively.

These brushes are engineered to rotate with the robot's movement, dislodging dirt and debris while maintaining traction on vertical surfaces. Users can expect a noticeable improvement in cleaning performance once worn brushes are replaced, making this a cost-effective maintenance solution.

Build quality appears solid with grey composite bristles that resist wear and water damage. The set includes two identical brushes, but buyers must verify the shape, length, and mounting configuration of their existing brushes to ensure compatibility, as similar-looking robots may use different assemblies.

One potential drawback is the lack of customer reviews, so real-world longevity is unconfirmed. Additionally, compatibility varies by robot revision, so double-checking your model number is essential before purchase.

Overall, the BGD 6101641-R2 brush set offers a reliable and affordable way to keep your Dolphin pool cleaner performing at its best. If you need to restore scrubbing and climbing function, this two-pack is a smart choice.

3
Limited Time

Calvana Climbing Ring Replacement for Maytronics

Calvana
9.8 /10
AI Score
AI score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the AI tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
This 4-pack climbing ring replacement from Calvana is a direct fit for many Maytronics Dolphin robotic pool cleaners, including M200, M400, M500, and Nautilus models. Made from durable PVA material, it offers easy installation and reliable performance for keeping your cleaner climbing walls effectively.
Pros & Cons

Pros

  • Wide compatibility with many Dolphin models
  • Made from durable, expandable PVA material
  • Easy to install with just water soaking
  • Complete 4-pack for full replacement
  • Affordable price point for routine maintenance

Cons

  • May not fit newer Dolphin models not listed in compatibility
  • Requires soaking before installation (takes a few minutes)
  • Some users may prefer OEM parts for exact fit
Detailed Review

The Calvana climbing ring replacement set is designed for owners of Maytronics Dolphin robotic pool cleaners who need to restore their unit's wall-climbing performance. It is compatible with popular models like the M200, M400, M500, Nautilus, Nautilus CC Plus, DX3, DX4, DX6, and many others. If your cleaner is slipping or failing to climb walls, these rings are a cost-effective fix.

The standout feature is the premium PVA material, which expands when soaked in water. This ensures a tight, secure fit on the rollers and provides excellent grip on pool walls. Real-world use shows that these rings restore the climbing action effectively, allowing the cleaner to scrub waterlines and corners as intended. The installation process is straightforward: just soak the rings for a few minutes until soft, then slide them onto the rollers.

Build quality is solid for an aftermarket part. The PVA is flexible yet durable, and the rings hold their shape after multiple uses. The set includes all four rings needed for a complete replacement, which is convenient. The white color blends in with most cleaners and won't affect aesthetics.

One potential drawback is that compatibility is limited to the models listed, so owners of newer or less common Dolphin models should verify fit before purchasing. Additionally, the rings require a brief soaking before installation, which adds a small step compared to some other replacement parts. However, this is a minor inconvenience given the cost savings over OEM parts.

Overall, the Calvana climbing ring replacement offers excellent value for Dolphin pool cleaner owners. It is easy to install, restores climbing performance effectively, and comes with a 60-day satisfaction guarantee. For routine maintenance, this is a smart buy that can extend the life of your cleaner without breaking the bank.

6

ANTOBLE 4Pcs Climbing Rings Replacement

ANTOBLE
9.8 /10
AI Score
AI score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the AI tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
These ANTOBLE climbing rings are a direct replacement for Maytronics Dolphin pool cleaners, featuring durable PVA construction and broad compatibility. Ideal for pool owners looking to restore their robot's wall-climbing performance without buying a new cleaner.
Pros & Cons

Pros

  • Durable PVA material resists wear and maintains shape.
  • Wide compatibility covers many popular Dolphin robot models.
  • Cost-effective replacement versus buying a new cleaner.
  • Simple to install with no modifications needed.
  • Rings dry and shrink for storage, then rehydrate to soft state.

Cons

  • Rings arrive dry and hard; must soak before use (this is normal).
  • No included instructions for installation (though straightforward).
  • May not fit all Dolphin models not listed; check measurements.
Detailed Review

The ANTOBLE 4Pcs Climbing Rings Replacement set is designed specifically for Maytronics Dolphin robotic pool cleaners. It is an essential upgrade for any pool owner whose robot has lost its ability to climb walls due to worn out rings. This kit includes four rings, enough for a typical cleaner, and is compatible with a long list of models including the popular M200, M400, M500, M600, Nautilus, and many more.

The standout feature is the use of premium PVA material. Unlike some cheaper alternatives, these rings are built to last. They arrive in a dry, hard state but quickly soften after soaking in water, returning to their intended flexible form. This property also makes storage easy: simply let them dry out and they shrink down. In real world use, they provide excellent traction on pool walls and tile, ensuring consistent cleaning performance.

Build quality feels solid. The rings measure 3.62 inches in diameter and 1.02 inches thick, with a centered hole of 1.89 inches, matching factory specs. they slide onto the cleaner axles easily. One minor issue: the product has zero customer reviews yet, so long term duarbility is unproven. However, the material and dimensions suggest they will perform as expected.

no significant drawbacks beyond the need to soak before first use. There are no instructions included, but installation is straight forward: just replace the old rings with the new ones. Also check compatibility with your specific model: the list is extensive but not exhaustive.

Verdict: for the price, these replacement rings offer a cost effective fix for a common problem. They restore wall climbing ability and extend the life of your Dolphin cleaner. If you have one of the many compatible models, this set is a smart buy.

How to Choose the Right Replacement Brushes

Picking the right brushes for your Dolphin Sigma involves more than just grabbing the first pack you see. The wrong type can hurt cleaning performance or even damage your pool cleaner. Focus on these key factors to make a smart choice.

Compatibility with Your Dolphin Model

Always verify that the brushes match your specific Dolphin Sigma model. Many brushes fit multiple models, like the 6101641-R2 which works with the Sigma, M600, and others. Double-check the part number against your owner’s manual to avoid a mismatch. For example, the best replacement brushes for dolphin active 60 pool cleaner may not fit the Sigma, so confirm before ordering.

Brush Type and Material

Brushes come in different materials and designs. Some are designed for scrubbing stubborn dirt, while others focus on gentle cleaning. The 6101641-R2 grey brushes are a common choice for their durability and effective scrubbing. If you need just the rear brush for stability, consider a dedicated option like the Doule King Replacement Rear Dynamic Brush, which helps prevent slipping on walls.

Genuine vs. Aftermarket Parts

You have two main paths: genuine Dolphin parts or aftermarket alternatives. Genuine parts, like the Dolphin Genuine Replacement Part, ensure a perfect fit and are certified by the manufacturer. Aftermarket options, such as the BGD 6101641-R2 Grey Climbing Brushes, often offer similar quality at a different price point. Weigh the warranty and fit guarantees when deciding. For more options, check out the best replacement brushes for Dolphin Active 30 pool cleaner to see how they compare.

Ease of Installation

Look for brushes that are easy to install without special tools. Most replacement brushes pop right into place, but some kits include helpful extras like a screwdriver. The 4Pcs Climbing Rings Replacement, for example, requires no tools and comes with clear instructions. A simple installation means you can get your pool cleaner back to work in minutes.

Frequently Asked Questions

What brushes fit a Dolphin Sigma?

The Dolphin Sigma uses the 6101641-R2 brush configuration. Brushes with this part number, like the 6101641-R2 Front Rear Brush Set, are designed to fit. Always check your model number and part compatibility before buying.

How often should I replace Dolphin Sigma brushes?

It depends on usage, but a good rule is to inspect them every 3 to 6 months. If you notice reduced cleaning performance or visible wear, it’s time to replace them. Regular replacement keeps your pool cleaner running efficiently.

Are aftermarket brushes as good as genuine Dolphin parts?

Aftermarket brushes can be just as effective if they meet the same specifications. Look for durable materials and a guarantee. Products like the BGD 6101641-R2 Grey Climbing Brushes offer a budget-friendly alternative without compromising on function.

How do I install replacement brushes on a Dolphin Sigma?

Installation is straightforward. Remove the old brushes by sliding them out, then slide the new ones into place until they click. Some kits include a screwdriver for easier removal. Always refer to your manual for specific instructions.