Custom Premix Selecting "Custom Premix" option means that all of the beads you have chosen will be premixed in manufacturing before the kit is sent to you.
Safety Data Sheet for CellASIC ONIX Pad Trap Plate (4-chamber, trap heights 12 micron), 5pk M04T-01-5PK
Material Safety Data Sheet or SDS for CellASIC ONIX Pad Trap Plate (4-chamber, trap heights 12 micron), 5pk M04T-01-5PK from Merck for download or viewing in the browser.