This is a replacement filter cap for a IRobot Roomba 900 series.
I haven't printed it yet, so I can't give you information about how good it fits.
There's a version with and without the seal around the cap, if you want to glue some rubber seal on the cap.
New files for 960 little balls on the hinge should prevent filter cap from falling out when opened
New files for 960
further mods für 980 - looks fine now
Tiny modifications for better fitting in 980
Seems that caps for 960 and 980 are different.
Added new stl for 980