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HPLC Replacement Parts for Thermo: LDC/Milton Roy by Optimize Technologies
When you need replacement parts for your LDC/Milton Roy HPLC system, choose Optimize parts. They're fit for the job, guaranteed.  

Opti-Max® Cartridge Check Valves  
All analytical (including constametric, minimetric, minipump  
Part # Description OEM # Price Buy
31-56-00759 OPTI-MAX Inlet Housing & Cartridge, 1/8" Ceramic Ball & Seat, SS Cartridge 900947001 $174.00
31-56-00764 OPTI-MAX Outlet Housing & Cartridge, 1/8" Ceramic Ball & Seat, SS Cartridge 900947002 $174.00
10-56-02004 OPTI-MAX Replacement Cartridges, 1/8" Ceramic Ball & Seat, SS Cart. 2/pk -- $199.00

Options: Stainless steel/ceramic OPTI-MAX Cartridges are listed above. Other materials available - contact us.

OEM—Type Check Valves  
All analytical (including constametric, minimetric, minipump)  
Part # Description OEM # Price Buy
31-24-00735 1/8"Nut & Ferrule, for Suction Tube 1960066976 $20.00
31-24-00736 1/16"Nut & Ferrule for Discharge Tube 1960066975 $20.00

Seals & Pistons  
All analytical (including constametric, minimetric, minipump  
Part # Description OEM # Price Buy
31-36-00806 OPTI-SEAL UHMW-PE Piston Seal 206234 $51.00
31-36-00807 OPTI-SEAL UHMW-PE Piston Seal, 10/pk -- $480.00
31-36-00754 OPTI-SEAL Replacement Kit 801598 $76.00
31-36-00808 ITB PTFE Piston Seal, Black 206129001 $47.00
31-36-00809 ITB PTFE Piston Seal, Black, 10/pkl -- $440.00
31-36-00750 Seal Replacement Kit, ITB 801598 $74.00
31-36-00745 UHMW-PE Piston Seal, Gold 206234 $49.00
31-36-00746 UHMW-PE Piston Seal, Gold, 10/pk -- $460.00
31-36-00747 Seal Replacement Kit, Gold 801892001 $74.00
31-34-00738 Sapphire Piston 801306 $126.00
31-34-00739 Crosshead Spring, Constrametric II, Mini-pump 9160282000 $15.00
31-34-00740 Crosshead Spring, Minimetric 204040 $18.50

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