My old filters were so clogged the vacuum was just pushing dirt around, so swapping in these two replacements gave it a whole new life. Took about ten seconds each, no tools needed, and I can already tell the suction is back to normal on the first pass.
Leo★★★★★
My RoboVac was noticeably weaker after months of use, but swapping in these pre-filters took about ten seconds and the suction feels strong again. Two filters in the pack means I'll have a spare ready for next time.
Christopher E.★★★★★
I was tired of my vacuum losing suction after a few minutes, but these pre-filters are easy to install without any tools and they fit perfectly on my 15T. The dust bin stays clean now, and the whole unit runs stronger than before.