https://www.philips.co.uk/c-p/SCF158_02/avent-isis-silicone-diaphragm-for-breast-pump
Avent ISIS Silicone diaphragm for breast pump SCF158/02 | Philips
This silicone diaphragm creates a vacuum in your electric breast pump.
avent isissilicone diaphragmbreast pump02philips
https://www.philips.com/c-p/SCF158_02/isis-silicone-diaphragm-for-breast-pump
ISIS Silicone diaphragm for breast pump SCF158/02 | Avent
To bring vacuum in the breast pump.
silicone diaphragmbreast pumpisis02avent