White Membranes for Medela Breast Pump
This 6 count pack contains more of those slippery little suckers. Yes, they love going down the drain when you are washing them. Also, these are the Number ONE reason if the pump is not working well. Check for tears by gently pulling the edges and looking for ANY tears or "wisps". Toss out if you spot such. Check that they are seated flat on the yellow valve or the pump won't work/work well.
Not an accessory for the Medela Freestyle pump.