Nenesupply 21mm Flange Inserts Compatible with 24mm Flange of Elvie OG Elvie Stride Spectra Momcozy Willow Reduce 24mm to 21mm Replace Elvie Inserts Accessories Not Original Elvie Pump Parts

Nenesupply 2nd Generation 21mm Flange Inserts Compatible with 24mm Flange of Elvie OG Elvie Stride Spectra Momcozy Willow Reduce 24mm to 21mm Replace Elvie Inserts Not Original Elvie Pump Parts

Maymom 21mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra 20mm Replace Pump Parts Spectra Flange Spectra Duckbill Valve

Nenesupply 21mm 2 pc Flanges Compatible with Spectra S2 Spectra S1 9 Plus Breastpumps Replacement to Spectra Pump Parts and Spectra Flange. Compatible with Spectra S2 Parts and Spectra 21mm