Nenesupply 21mm 2 pc Flanges Duckbill Valves Compatible with Spectra S2 S1 9 Plus Synergy Gold Breastpump Replacement to Spectra Pump Parts Flange Accessories Wide Mouth Work with Backflow Protector

• CONTAINS 2 SMALL 21mm FLANGES / Breastshields. MADE BY NENESUPPLY. COMPATIBLE WITH SPECTRA S2, SPECTRA S1, SPECTRA 9 PLUS, AND SYNERGY GOLD BREASTPUMPS. Not Original Spectra S2 Flanges. Not original Spectra pump parts.
• WIDE MOUTH FLANGES. Compatible and Interchangeable with Spectra valves, Spectra backflow protectors, and Spectra bottles. Also work with Nenesupply bottles.
• The flange funnels have smooth angles and do not rub against nipples. It is comfortable while pumping. The flange tunnel is at least 32mm long. It is suitable for stretched nipples. DIFFERENT FLANGE SIZES AVAILABLE: 15mm, 17mm, 19mm, 21mm, 24mm, 27mm, 30mm.
• DISH WASHER SAFE (TOP RACK). Can be sterilized with boiling water, water steam, and microwavable bags. BPA Free, DEHP Free. Comply with FDA regulations for food contact materials. Tested by independent labs for safety.
• SAME SUCTION AS ORIGINAL PUMP PARTS. Backflow protectors fit securely on the flanges and form an air-tight seal. Bottles fit securely on the flanges.

Flanges