HomeHPLC - Mass SpecWB233WB233 WB233 Add to quote This product is already in your quote request list. Browse the list Description Description WB Scientific Part WB233 OEM Part 228-48249-96, Old# 228-48249-91, 228-45704-92 Models LC-20AD/AB XR, LC-30ADSF, i-series Description: Inlet Check Valve