Quiet Cover for GC/MS, Pfeiffer Duo 2.5G (or higher), Agilent DS42/DS42i, Edwards E2M1.5 2.5 vacuum pumps. Agilent provides a solution to address the annoying, frequent maintenance of GC/MS rough pumps (visual check of oil levels, oil changes, oil additions, clean-up of oil leaks, etc.), as well as the inherent noise produced by the pumps. The Quiet Cover GC/MS was designed for easy movement, maintenance, and better living with rough pumps used with Agilent and other GC/MS systems.;The Quiet Cover GC/MS is compatible with rough pump models used in many laboratories, including the Agilent DS42, Agilent DS42i, Agilent IDP-3*, Pfieffier Duo 2.5, and Edwards E2M1.5. This quiet cover model is compatible with Agilent 5977 GC/MS, 5975 GC/MS and 5973 GC/MS systems.;*For the Agilent IDP-3, also order the install kit, IDP3 for G6014 Quiet Cover (G6014-68000)