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Liquid Seal Diaphragm [Pack of 2]

20 reviews
Size Guide

Pack of 2 replacement seal diaphragms for use with your Pumpables Liquid Shield Kit.


The diaphragms that go under the seal cap in your Liquid Shield Kit need regular replacement. Expect to replace diaphragms every 6 months of light use, i.e. if you're pumping just a few times a week, up to every month if you're pumping exclusively.


Please note these diaphragms are not compatible with our universal backflow protectors. If you're looking for diaphragms for standard backflow protectors such as our universal backflow protectors or Spectra's, please buy our universal diaphragms.


All Pumpables parts in contact with your milk are free from BPA, phthalates and other nasties.

Customer Reviews
4.7 Based on 20 Reviews
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Filter Reviews:
    Sylvia M.
    Singapore Singapore

    Been using these with liquid shield and they've been great!

    Daisy T.
    Singapore Singapore
    Could be improved

    I really like how the liquid shield kit helps to empty me quicker than traditional shields. However, the design could really be improved especially this seal diaphragm which is a single loose piece by itself that doesn't stick/is held firmly with the shield, hence I also worry abt losing it as it often drops off when I take the kit apart for washing & assembling before pumping

    Pumpables Liquid Seal Diaphragm [Pack of 2] Review
    Ellen G.
    United States United States
    Good replacement item

    It's good to have extras of these diaphragms because sometimes they fall off before being secured by the seal cap.

    Nadine M.
    Australia Australia

    I use them with the pumpables liquid shields and they're amazing! They fit perfectly onto my spectra s1. And shipping is really quick too! 11/10.

    Pumpables Liquid Seal Diaphragm [Pack of 2] Review