Review on Nenesupply Replacement Kit For Spectra S1/S2 Pumps - Compatible With Spectra Parts And Accessories - Includes 24Mm Flange, Backflow Protector, And Duckbill Valve For Spectra Pump Accessories. by Charlie Powell

I can’t say enough good things about this! Cost is great compared to spectra. Quality is spot on with spectra. I love this style even more compared to the standard spectra setup because the back flow protector has less pieces and never falls off. I’ve never had a bottle slip off like I’ve heard happen with spectra parts. I have only had one connector piece crack, but I had put it in the dishwasher and I’m wondering if I had pressed against the rack when it was in there because the rest are fine. LOVE THEM!