part inquiry: inlet and outlet check valve cartridge for Agilent SD 210/218

Oh, I just googled the parts numbers that I think what I want and they look a lot different from a check valve cartridge..

Hello,  the parts numbers that you have listed above are correct for 25mL pump heads.  From Agilent.com:

R007101408

CARTRIDGE INLET CHK VLV 5/10/25ML

and

R007101409

CARTRIDGE OUTLET CHK VLV 5/10/25ML

For a 25 ml SS pump head these are the part numbers:

R007101064       Stainless Steel Pump Head 25 mL/min        

R007101408        Check valve cartridge, Inlet   

 R007101409       Check valve cartridge, Outlet

R007101406       Body, Check Valve Inlet, 5/10/25ML, SS

R007101407       Body, Check Valve Outlet,5/10/25ML, SS