The Roborock S81USP is a regional configuration in the S8 Pro Ultra range, a robot that combines high suction output with an advanced dock system designed to handle the robot’s full maintenance cycle. The auto-empty component uses Roborock’s sealed bag format: after a cleaning session, the robot docks and the station triggers a suction burst that transfers debris from the robot’s bin into a sealed bag in the collection chamber. The sealed format prevents dust from re-entering the room during bag changes.
The S8 Pro Ultra dock handles frequent emptying cycles, which means the bag accumulates debris at a steady rate during regular use. Stocking 20 bags at once provides a long resupply window before a repeat order is needed. This resupply set contains 20 Plus.Parts® replacement dust bags direct-fit for the S81USP dock’s collection chamber, with no modification required.
Each bag is built to hold through the auto-empty cycle and through disposal, with a secure seal that does not split under the station’s suction conditions. Our support team is available to confirm compatibility if you have questions about your specific dock setup.
What you get
- Pro Ultra Fit Sized for the S81USP dock’s collection chamber, sealing directly without adaptation.
- Long Resupply Window 20 bags cover an extended period of daily use before restocking becomes necessary.
- Solid Construction Seal holds through the auto-empty suction cycle and through bag removal and disposal.
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