
This product makes pumping so much more convenient as I can now pump directly into Comotomo bottles with my Spectra pump. As far as I can tell it's airtight if all the parts are connected properly. This makes the whole installation more cumbersome when the Comomoto adapter and cylinders are connected to the Spectra flange, but that's to be expected.

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

Nenesupply 21Mm Flange Pump Parts - Compatible Replacement Kit For Spectra S2/S1 Breast Pumps With Essential Accessories
42 Review

Maymom Tubing Kit For Freemie Cups To Connect To Medela Freestyle Pump
38 Review

Electric breast pump LACTEA Smart Double, beige
59 Review

Earth's Best Organic Sesame Street Toddler Crunchin' Crackers, Original Flavor, 5.3 oz Box (6-Pack)
8 Review

๐ผ Organic Stage 2 Baby Food, Squash & Peas - Earth's Best, 3.5 oz Pouch (Pack of 12)
7 Review

Earth's Best Non-GMO Soy Plant Based Infant Powder Formula: Iron, Omega-3 DHA & 6 ARA, 21 oz โ Comprehensive Nutrition for Infants
7 Review

Plum Organics Hearty Veggie Variety ๐ผ Pack, 3.5oz Pouches, 18-Pack - Organic Baby Food
8 Review