Medela Symphony to Lactina Conversion Kit #67090. Includes: - Piston and Cylinder (1 each) - #8007190 - Pump Connector with Port Plug (1 each) - #8007195 - Instructions NOTE: This item is NOT available in retail packaging. Medela provides this part bulk packaged in polythene bags. Likewise, we use NEW & UNUSED polythene bags to ship these products to our customers.