PumpMom-us Replacement Silicone Membrane for Spectra S2 S1 and 9 Plus Breast Pump Backflow Protector and Maymom Backflow Protectors, Not Original

The customer reviews for these replacement diaphragms for Spectra pumps are quite mixed. While some users found them to be a perfect fit and perform just as well as the original parts, others experienced problems such as decreased suction leading to lower milk expression and even clogs. One user, who exclusively pumps, noticed a decrease in pump performance and an increase in clogs after just two days of use. They had to switch back to the original membranes to avoid issues due to their heavy reliance on the pump. In contrast, another user found the diaphragms to fit perfectly and function just like the factory parts, providing a more affordable alternative without any complaints. However, there were also complaints about the quality of the diaphragms, with one user noting that they became flimsy and floppy after a few uses, leading to ineffective pumping sessions. This prompted them to discard the diaphragms. On the other hand, some users appreciated the cost-effectiveness of being able to purchase only the rubber pieces that wear out instead of the entire backflow protector. Overall, while these replacement diaphragms may work well for some users, especially in terms of fit and price, there are concerns about their durability and impact on pump performance for others. **