Eendenbekkleppen (2-pack) ALLEEN voor Draagbare Borstkolf

I was skeptical about replacing my old valves, but these fit perfectly with a secure seal. The one-piece design feels sturdy and easy to clean.

These fit snugly and the one-piece construction is definitely sturdier than the cheaper multi-part ones I’ve tried. They work fine for the first couple of weeks, but I can already see how they’ll need swapping at the 4-5 week mark the description warns about. Just wish they lasted a bit longer for t