HomeHPLC Replacement PartsTube Assembly, Transducer to Check ValveTube Assembly, Transducer to Check Valve Tube Assembly, Transducer to Check Valve Add to quote This product is already in your quote request list. Browse the list Description Description Reference WB420 OEM Part 430002357 Models: ACQUITY® H-Class QSM, ACQUITY® Isocratic Solvent Mgr, ACQUITY® M-Class µASM, ACQUITY® M-Class µBSM