Aijiren G3199B Quiet Cover II for LC/MS rough pump, compatible with BOC Edwards pumps E1M18, E2M18, E2M28 $ 1,740.00 Add to cart; Analytical Head Assembly PN: 01078-60003 for Aijiren/HP / HPLC $ 1,000.00 Add to cart; Aijiren G1312 Pump Motor (Left) $ 950.00 Add to cart; Phenomenex Luna® 5 µm HILIC 200 Å, LC Column 50 x 21.2 mm PN