Compatible with the Fraupow Wearable Pump and the Fraupow Viva Pro Pump. The Fraupow Hands Free Electric Pumps are built to last, with interchangeable parts so you can tailor it to your body. Our silicone inserts are designed to be soft and comfortable on the breast. Check out our fit guide here. Our breast pump replacement parts work extremely hard to ensure that suction is effective each time you use your breast pump, and will wear out over time. Depending how frequently you use your pump these consumable parts will need to be replaced every 1-3 months to ensure your pump stays efficient and creates maximum output.