Inquiry (采购产品): parts Just bought a used laminar flow hood in need of the fan control knob or the whole potentiometer whatever it takes. Can I get parts there or someplace else also a new HEPA filter for model NU-301-436 serial# 2202 Thanks **** Hidden Message ***** Dave Witte 51450 Company: Thistle Down Nursery E-mail: thsldwn@netins.net **** Hidden Message ***** thsldwn@netins.net
