The Rumble Tuff Manual Pump Diaphragm Kit can turn any Expression Collection Combo Kit into a manual pump. It makes pumping a little bit easier for mothers on the go. BPA free. Package includes: (1) Handle, (1) Cup, (1) Diaphragm, (1) Valve Stem, (1) Valve Adjust Knob, and (1) O-ring
Compatible with all Rumble Tuff breast pumps.