Maymom Breastmilk Storage Bag Adapters Compatible with Spectra S1, S2 Pumps ; 2 Duckbill Valves Included; Clear BPA Free Material; Boiling Water OK; Do Not Use Microwave or Steamer Bag to Sanitize

It’s easy to use and fits our Motif breastmilk bags wells. It doesn’t leak as long as you stay mostly upright while pumping. It’s great because you can pump directly into the bag instead of pumping into a bottle!

Its works with "Maymom Pump Parts Spectra S2 Flange Valve Tube Bottle Backflow Protector." States not to use with "Medela" bags but we just cut them short and they clip on extremely well.

Game changer for pumping. Attached well to my spectra parts and I am able to pump and save in the fridge or space directly into the freezer.

Bought these for my wife to eliminate the need to pump into bottles only to pour what’s in the bottles into freezer bags. These solve the issue but seems there would be a better way to do so, a more leakproof way of sealing the void between the product and the baggie. 5 stars because it does exactly what is intended.

Works pretty well. I just wish the space between the opening and the spring inside the clip was longer. It’s so shallow that the opening doesn’t go very far into the bag, and I’m always afraid I’ll end up spilling some milk.

Love how easy this is to use and clean! Cant live without it now!

These are a game changer! I use them with my spectra and they are a breeze. I pump directly into the bags which is SO much easier, faster and less stuff to wash. These are the first thing I recommend to my mom friends returning to work.

I like that this product allows me to pump directly into freezer storage bags instead of having to pump into a storage bottle and then transfer into a storage bag. I also appreciate how easy these are to clean I simply get the bottle washing soap and a bottle cleaning brush and scrub inside the adapter and then rinse. The only concern that I have is that the clip that holds the breastmilk freezer bag in place does not feel as though it will hold the bag securely when it is filling up. In other words I was worried that as I pumped more breastmilk into the bag with the adapter that the bag would slip off and spill. I would hold the bag at the clip part of the adapter to prevent any possible slipping. It is important to note that I have not had a bag slip off just the worry that it would happen. However, even considering that I will still purchase more of these when the ones I have now need to be replaced.