The Evenflo Feeding Advanced Double Electric Replacement Parts Kit is designed for use with your hospital strength Evenflo Feeding Advanced Double Electric Breast Pump. Just like vehicles, your breast pump requires maintenance. If you notice a decrease in suction or overall performance, it may be time to replace some of your parts. Regularly check all of the pieces for cracking, tearing, stretching, or any other signs of wear. The Replacement Parts Kit can also help save you some time – leave a set at work, at home, or anywhere in between to allow you the freedom from cleanups every time you use your pump. The kit can also save you from forgetfulness. Having an extra set of parts on hand will ensure you never miss a pumping session. Everything you need is included – multiple flange sizes, tubing, diaphragms, caps, membranes, and valves. Replacement parts are 100% free of BPA, polycarbonates, PVC and phthalates and are made of FDA-approved food grade material. Compatible with the hospital strength Evenflo Feeding Advanced Double Electric Breast Pump Replace membranes, valves and diaphragms every 60-90 days; worn out parts reduce your pump's performance A spare set of parts to keep at home, school or work Pump Compatibility: Compatible with the hospital strength Evenflo Feeding Advanced Double Electric Breast Pump. Comfort Where It Counts: The slouch-free flange design and multiple flange sizes help you have a more comfortable, effective pumping session. Pump Maintenance: Missing or worn out pump parts can reduce your pump's suction and overall performance. If you pump on a daily basis, you will want to change your valves, membranes, and diaphragms every 60 to 90 days.