Neato Botvac High Performance Filters (6pk) - RobotShop
Neato Botvac High-Performance Filter | eBay
LifeSupplyUSA 8x2.5x1 in. Replacement HEPA Filter fits Neato BotVac Connected and D Series Floor Robotic Vacuum Cleaners (25-Pack) 25ER610 - The Home Depot