Hi Hoang, you will need to keep the existing flow restrictor and installed back on to the new membrane. Hope this helps, but feel free to reach out to our support if you have any questions.

@@Aquasure thanks for your reply. Another question. Is the flow lock latch supposed to be lock and pressed down or flipped up where it’s loosely hanging

Didn’t say anything about the drain. Which if you remove without shutting off the reservoir, you lose all the pressure.. sure it’s an easier process than the older styles, but please show all the damn steps. So now that I have no pressure in my tank, what do I do?

We apologize if you felt this way, but the video focuses on demonstrating how the filters are replaced compared to a traditional reverse osmosis system. It doesn't show the step where you need to shut off the inlet valve and release the pressure by opening up the RO faucet. This step is common to both our RO system and traditional reverse osmosis systems, which is why it wasn't included in the comparison video. Please follow our step by step instruction in our owner's manual for proper filter replacement.