I have a Medela electric pump with the double pump but only one of the storage bottles, the bottles…

evenflo breast milk storage bottles. they're about $7 for 4 bottles.

I saw the bottles for Medela at Burlington and Ross on sale

instead of the medela bottle they have a pack of like 10 breastmilk bottles (holds 2 ounces) and its medela. like $5 at walmart

there pack of bottles are 17 for 3. these arent the round bottles there small like the ready made formula bottles:)

your Dr office might have some just adk

ask

There's a whole set at target that's only like $30 it comes with all the stuff you'll need to pump and store your milk

There are adapters that you can buy to put on your pump so you can put other bottles on the pump. They're not very spendy.