Twist Breast Pump Adapters screw directly onto Twist Breast Milk Storage Bags so you can pump directly into the pouch, eliminating the need to transfer from bottle to bag. Our Direct-Pump™ Adapter technology connects to all major brand pumps providing you with unlimited flexibility. This kit gives you a pair of each of our most popular adapters. What it does: Our Twist Breast Pump Adapters use a twist-locking mechanism to attach our Twist Breast Milk Storage Bags onto ALL major pump brands, for leak-free, transfer-free pumping. Feed directly from Twist Breast Milk Storage Bags by popping the Twist Active-Latch Nipple on a pouch, or use one of our direct-pump adapters to attach another brand’s nipple. Why you'll love it: Twist Breast Pump Adapters are all labeled, typically around the outer lip or inner rim. Our system is compatible with all standard thread pumps, as well as many smaller and/or newer pump brands. Additionally, some new pump brands share the same threads as some of the other brands listed below. Twist Adapters are recyclable, BPA-free, phthalate-free, and PVC-free, and top rack dishwasher and steam sterilizer safe. Works With: