Click on image to enlarge Centrifugal Cryogenic Pump - 1½" x 2½" x 6" - 1 stage Reference: GR-26 - 2½"x1½"x6"-1S Centrifugal Cryogenic Pump - 1" x 2" x 6" - 2 stages Reference: GR-20 - 1x2x6 - 2S Centrifugal Cryogenic Pump - 1" x 2" x 6" - 3 stages Reference: GR-20 - 1x2x6 - 3S Centrifugal Cryogenic Pump - 2½" x 1½" x 6" ou 2" x 1" x 6" Reference: GR-30