Amazon.com : Maymom Flange Adapter Compatible with Spectra S1, Spectra S2, Compatible with Most Medela Breastshield and Bottles; Connects Between Maymom/Medela Breastshield and Spectra Backflow Protector : Baby
Flange Inserts 17/19/21/24 mm Breast Pump Horn Caliber Size Converter Milk Cup Caliber Adapter Small Nipple Horn Cover - Walmart.com
Amazon.com : PumpMom Backflow Adapter for Spectra S1, Spectra S2 Pump to Use Most Medela Flanges and Bottles; Connects Between Medela Breastshield and Spectra Backflow Protector (Pumpmom Flange Adapter) : Baby
Breast Pump Accessories Flange Funnel Inserts 13/15/17/19/21/24mm Caliber Size Adaptor Converter Small Nipple Horn Adapter - AliExpress
Amazon.com : BabyShown Flange Adapter Connector Adapter for Spectra S1/S2 Pump to Compatible with New Medela PIS MaxFlow Connector Medela Flange Medela Freestyle Flex Connector, 2pc : Baby
Amazon.com : BabyShown Flange Adapter Connector Adapter for Spectra S1/S2 Pump to Compatible with New Medela PIS MaxFlow Connector Medela Flange Medela Freestyle Flex Connector, 2pc : Baby
Amazon.com : PumpMom Backflow Adapter for Spectra S1, Spectra S2 Pump to Use Most Medela Flanges and Bottles; Connects Between Medela Breastshield and Spectra Backflow Protector (Pumpmom Flange Adapter) : Baby
Amazon.com : Nenesupply Flange Adapter for Spectra Flange. Compatible with Spectra S2 Accessories and Medela Bottles. Not Original Spectra Pump Parts Replace Spectra Adapter Use as Spectra Medela Bottle Adapter : Baby
Amazon.com : Maymom Flange Adapter Compatible with Spectra S1, Spectra S2, Compatible with Most Medela Breastshield and Bottles; Connects Between Maymom/Medela Breastshield and Spectra Backflow Protector : Baby
Baby Products Online - New 6 pcs breast pump insert adapter flange breast protector practical replacement of breast pump - Kideno