Is the unit able to be disassembled and the filter cleaned?

Hello, thank you for your question. Yes, you can clean the filter. Please see the link below for instructions: https://support.surfacemaxx.com/article/160-question-how-do-i-clean-the-screen-inside-the-high-pressure-filter-attachment-i-purchased-from-lowes-should-i-open-the-end-in-the-direction-of-the-arrow