Youha Connectors is apair of replacement connectors for Youha Express Handsfree Collection Cups Set . It consists of a pair of membrane cap, membrane, valve base, valve.It is ideal to replace your connectors every 6 months or as needed. Replacing your breast pump parts frequently is essential in keeping your breast pump working in top condition for best pumping experience. This spare part can also be used on INs Gen 1 handsfree breast pump (without the membrane cap) Includes 2xmembrane cap, 2x membrane, 2x valve base, 2x valve.