Inquiry (采购产品): 2216 Cartridge Check Valve This is one valve I am considering to replace an existing relief valve to reduce cost. Please send more information and if possible, a quote for an annual usage of <2000. **** Hidden Message ***** Sam Schumacher 61656-11875 Company: Caterpillar Inc. E-mail: schumacherst@mchsi.com **** Hidden Message ***** schumacherst@mchsi.com