CONTENTS 2 24mm Flanges 2 Duckbill Valves 2 Backflow Protectors 2 Bottles and 2 Tubing All the parts are compatible and interchangeable with Spectra parts and bottles NENESUPPLY COMPATIBLE PUMP PARTS 24mm FLANGE FOR SPECTRA S1 S2 9 PLUS BREASTPUMPS Made by Nenesupply Inc ALL PARTS MADE BY NENESUPPLY ALL PARTS ARE COMPATIBLE and INTERCHANGEABLE WITH ORIGINAL PARTS that come with your Spectra pumpsNot Original Spectra S2 Accessories Not original Spectra Pump Parts and S1 parts SAME SUCTION AS ORIGINAL PARTS Valves backflow protectors and flanges form an airtight seal The parts can replace Spectra Flanges Duckbill Valves Backflow Protectors Tubings and Bottles Wide Mouth Multiple flange sizes available 15mm 17mm 19mm 21mm 24mm 27mm 30mm Backflow protectors fit securely with tubing The membrane is elastic and flexible and can maintain suction through multiple pumping cycles It is a closed system and protects your pump Tubing is longer than original tubing and it is easy to use while pumping LEAKPROOF BOTTLES The bottles come with leakproof caps and sealing rings The bottles works with collars and nipples of Nenesupply Avent and Spectra The using temperature of the bottles ranges from 20 100 degree Celsius They can be stored in the fridge and can use bottle warmer to warm up the milk They can be used as storage bottles and are easy for travel All parts are BPA free and Comply with FDA regulations for food contacts These claims are substantiated with testing reports done by independent labs Dishwasher safe and can be cleaned with water steam boiling water or microwavesteam bags Flanges have smooth angles so they fit comfortably while pumping The flange tunnel is at least 32mm so they are suitable for stretched nipples