Inquiry (采购产品): Reducing couplings Please quote me a reducing coupling. 1/2" x 5/16". The 1/2" port for poly tubing, the 5/16" port for SS tubing. this would be a low pressure application. Under 100psi. **** Hidden Message ***** Phillip Rumbaugh 43560 Company: Generic Systems, Inc. E-mail: prumbaugh@geneicsys.com **** Hidden Message ***** prumbaugh@geneicsys.com