
I have a spectra s2 plus and these did NOT work. It took double the time to pump and still didn't empty. I had to go back to my old ones (thankfully I kept them just in case)

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

Upgrade Your Spectra Pump: Nenesupply Tubing - Compatible With Ameda And Avent - Replace Your Spectra Accessories
57 Review

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

Maymom 15Mm Flange Insert Compatible With Elvie Single/Double Electric, Elvie Stride Cup (24Mm), Compatible With Medela PersonalFit Flex Shield, Not Original Elvie Replacement Pump Parts
52 Review

๐ฅฆ Sprout Organic Baby Food, Mediterranean Veggie Power Bowl with Beans & Quinoa, 5 Oz Bowl (8 Count) - Ideal for Toddlers & Infants
8 Review

Delicious Katjes Kinder Licorice Cat-shaped Drops 200g Licorice Pieces: Value Pack of 3!
7 Review

Omega-3 caps, 1000 mg, 200 pcs.
21 Review

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