Medela - Lactaset Single Pump Set The reusable Lactina Single Pump Sets were designed for the Medela Lactina Select and Lactina Electric Plus Breast pump. Due to its unique design the pump set can also be used as a manual breastpump. The pump set includes everything you need as a breastfeeding mother when using the Lactina Hospital Grade Breastpump. The pump set contains a breastshield in size M (24mm). Free of Bisphenol A : All components of the pump set that come into contact with the breastmilk are BPA-free.