MP male to 3/8 NPT female adapter.
MP male to 3/8 NPT female adapter.
CPF is an improved cone type fitting system that adds a unique o-ring sealing system which permits leak free connections without tools.  CPF fittings can be directly connected to 1/4" medium pressure cone type fittings from other manufacturers*, provided that wrenches are used to complete the connection.  The fittings of the CPF system have been designed and tested to comply with ASME B31.3-2008, Chapter IX: High Pressure Piping. 
* HiP: 1/4" Female and Male Medium Pressure (LF4 & LM4 series) 
Autoclave Engineers: 1/4" Female and Male Medium Pressure (SF250CX series) 
Notes: 
Non-Crystal MP adapters require wrench tightening 
Hose is not compatible with dioctyl sebacate fluid 
CAUTION: To achieve CPF maximum allowable working pressures no o-ring substitutions are allowed. 
If a torque wrench isn't practical to use, hand tighten then tighten an additional 20 degrees using a wrench.