The patented MPLC cartridge system ensures leak-free operation up
to 7000 psi, with only finger-tightening. Thehigh-pressure seal in
each end assembly actually seals tighter as pressure increases. No
wrenches are required, andthere is no need to disconnect any tubing
to your LC system when changing a cartridge. Each MPLC cartridge
canbe directly coupled to another using a union.