Review on Nenesupply 21Mm Flange Replacement Kit Compatible With Spectra S2/S1 Breast Pumps, Including Ducksbill Valve, Backflow Protector, And Other S2 Accessories And Parts by Glen Elevyn

Great replacement pieces for Spectra pumps. I ordered an extra set to have to switch out with the pieces that came original with my pump. This way I can have a set go through the dishwasher for cleaning while I am using the other set. Fits pretty much the same as the pump original flanges. I like that a variety of flange sizes are available because my pump came with 24 mm and 28 mm flanges, but I needed to order 21 mm instead.