Owned and operated by fellow mamas, lactation consultants, and registered nurses — Spectra is committed to supporting every mama on the beautiful journey of breastfeeding. From their unique Natural Nursing Technology to our one-of-a-kind customer care, you can count on Spectra to be right there with you, every step of the way. They are mamas. They are nurses.

Spectra backflow diaphragms are used to protect the breast pump from milk backflow. These spectra lid-type diaphragms are compatible with Spectra M1, S9, S1, and S2 pumps. It is recommended that you replace the diaphragm every 12 months. These spectra breast kit parts are a pair of spectra lid-type diaphragms and come in a package of 2.