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NanoFilters™ are Dolphin's most advanced filtration technology. Unlike standard mesh filters that only capture larger debris, NanoFilters use ultra-fine pleated media to trap particles down to the micron level—including algae, pollen, sunscreen residue, fine sand, and oils that cloud your water.
Originally developed for Dolphin's commercial pool robots, NanoFiltration™ is now available on select residential models. Every ProLine™ robot includes NanoFilters in the box, and they're available as add-ons for compatible Max-Series™ models.
Standard mesh filters are great for everyday debris like leaves, twigs, and large dirt particles. But they let fine sediment, algae spores, and microscopic contaminants pass right through—recirculating them back into your pool water.
NanoFilters solve this problem. Their advanced pleated design provides significantly more surface area and tighter filtration, capturing what standard filters miss. The result is visibly clearer, healthier pool water with less reliance on chemical treatments.
Learn More About NanoFilters
NanoFilters are ideal for pool owners who deal with persistent water clarity issues, fine debris, or algae problems that standard filters can't solve. They're especially valuable if you have:
If crystal-clear water is your priority, NanoFilters are the upgrade that makes the biggest difference.
These are the Dolphin robotic pool cleaners our experts recommend most for pool owners who want the deepest clean and best water clarity. Every robot below is NanoFilter-compatible or includes NanoFilters in the box.
The Dolphin Sigma is the flagship of the ProLine™—featuring a built-in gyroscope, SmartNav 3.0™ navigation, Wi-Fi connectivity, and quad brushes powered by commercial-grade dual motors. NanoFilters come included, delivering the most thorough and intelligent clean of any residential Dolphin. Designed for medium to large inground pools up to 60 feet.
Shop Dolphin SigmaRated the Best Pool Robot by USA Today, the Dolphin Premier is the only residential Dolphin with an oversized leaf bag, Multi-Media™ filtration, and included NanoFilters. Its commercial-grade motors push over 4,500 gallons per hour, making it the most powerful option for pools with heavy leaf debris. Backed by a 3-year warranty and our 30-day risk-free trial.
Shop Dolphin Premier
The Dolphin Quantum combines NanoFiltration with the XXL MaxBin™ top-loading filter system—giving you both ultra-fine filtration and the easiest debris removal of any Dolphin. Powered by a HyperBrush and commercial-grade motors, the Quantum delivers ProLine-level performance with the simplest maintenance routine. Includes a 3-year warranty.
Shop Dolphin QuantumWhether you want an extra set or want to add it to your robot, shop all of the Dolphin NanoFilters here. See why so many pool owners make the switch to NanoFilters today.
Shop AccessoriesNanoFilters are an advanced filtration technology found in select Dolphin robotic pool cleaners. They are designed to capture ultra-fine particles that standard filters miss, including algae, fine sand, pollen, and other microscopic debris, resulting in significantly improved water clarity.
NanoFilters are available on select Dolphin models, including robots from the ProLine and other premium lineups. Models like the Dolphin Sigma and Dolphin Premier come with NanoFilters included. Visit our NanoFilter page for a complete list of compatible robots.
NanoFilters capture particles far smaller than what standard mesh filters can handle. While standard filters are effective for general debris like leaves and larger dirt, NanoFilters go further by trapping fine particles down to the micron level. This makes them ideal for pools that struggle with cloudy water, algae, or fine sediment.
Yes, NanoFilters are specifically designed to capture algae and other ultra-fine particles that pass through standard filters. By trapping algae before it can circulate back into the pool, NanoFilters help keep your water cleaner and reduce the need for excess chemical treatments.
To maintain your NanoFilters, rinse them thoroughly with a garden hose after each cleaning cycle to remove captured debris. Avoid using high-pressure washers as they can damage the fine filter media. Allow the filters to dry completely before reinserting. With proper care, NanoFilters provide long-lasting, superior filtration performance.
For pool owners dealing with algae, fine sand, pollen, or cloudy water, NanoFilters are a worthwhile upgrade. They dramatically improve water clarity and reduce reliance on chemical treatments. If your pool is primarily affected by larger debris like leaves, standard filters may be sufficient. Contact us for help deciding which filtration option is best for your pool.
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