Dolphin Center Brush
- No More Getting Stuck on the Main Drain
- Snap-On Install in About 5 Minutes
- Adds a Third Scrubbing Brush for a Deeper Clean
- Authentic Dolphin Part
Compatible with: Sigma
Condition: New & In-Stock
See It in Action
Meet the Center Brush Upgrade.
The Fix for Main Drains.
More Scrubbing Power.
Every Dolphin Sigma owner knows the one spot that can slow it down: the main drain. The Center Brush Upgrade bridges the gap between the Sigma's tracks, so instead of settling onto the drain and hanging up, your robot rolls right over it and keeps on cleaning. It snaps on in minutes — and as a bonus, you get a third brush scrubbing your pool floor on every pass.
Never Get Stuck
on the Main Drain Again
Main drains create suction and an uneven surface that can catch a robot mid-cycle. When that happens, your Sigma stalls in one spot while the rest of the pool waits. The Center Brush fills the space between the tracks, giving your Sigma a smooth rolling surface that carries it right across the drain. Drop it in and trust that every cleaning cycle finishes — no more rescue missions to the bottom of the pool.
A Third Brush.
Serious Scrubbing Power.
The Sigma already power-scrubs with dual spinning brushes. The Center Brush adds a third point of contact between the tracks, agitating dirt, algae, and biofilm on the pool floor so the Sigma's powerful suction and NanoFilters™ can capture it. More brushing contact on every pass means a deeper clean for your pool — without changing a thing about how you run your robot.
A Good & Easy Update.
Installed in Minutes.
No tools, no disassembly, no hassle. The kit includes everything you need, and the brush assembly snaps onto your Sigma in about five minutes — watch the install video above to see just how simple it is. It's one of the best quality-of-life upgrades you can make to your Sigma, and it's a genuine Maytronics part, engineered to fit perfectly.
Try It for 30 Days
Try any robot in your pool for 30 days. We believe a pool robot is an investment, and we know you'll love it. Which is why we have a 30 Day Trial. If you don't love it, simply return the robot. Unlike the other guys, we never charge a restocking fee or any other fees - meaning no restocking fee ever.
Here at Poolbots, we carry only the top models for the top brands. All of our products are backed by a full manufacturer's warranty.
