Why Ultra-Fine Filtration Matters
The finer the filter, the clearer your water. Ultra-fine and NanoFilter™ media trap the microscopic debris that standard filters push right back into the pool — the root cause of the "clean but cloudy" pool. If you fight pollen film, dust, or haze after storms, this is the feature to buy.
As one of the largest authorized dealers and retailers of robotic pool cleaners online, we've hand-tested 70+ robots across every major brand — every recommendation below comes from real poolside experience, and every unit we sell is factory-direct with a full manufacturer warranty.
Recommended Models
Dolphin ProLine™ cleaners (Quantum, Premier, Sigma) include NanoFilters™; the Cayman supports ultra-fine upgrades. All pair fine media with the strong suction needed to actually pull settled fine dirt off the floor.
Coarse vs. Fine: Use Both
Fine media is for polish; coarse media or leaf bags are for bulk. Most ProLine™ owners run coarse screens in fall for leaves, then switch to ultra-fine in spring and summer for algae and pollen. Swapping takes seconds.
