HomeHPLC - Mass SpecWB018WB018 WB018 Add to quote This product is already in your quote request list. Browse the list Description Description WB Scientific Part WB018 OEM Part 405011492, Old# 405008397 Models ACQUITY® H-Class Bio SM-FTN, ACQUITY® H-Class SM-FTN, ACQUITY® I-Class SM-FTN Description: Needle Seat