Willow Sync Diaphragm Set (2-pack)

Replacing these at the 90-day mark keeps the pump running smoothly, and the fit is identical to the originals so no guessing game. I notice the difference in suction immediately after swapping in a fresh set.

Three months in and these diaphragms still feel as snug and responsive as day one, which is exactly why I set a reminder to swap them every 90 days. The 2-pack means I always have a spare ready when the first one starts showing wear.

I was a little skeptical about replacing my parts, but these diaphragms fit perfectly and the seal feels much better than the old ones. The 90-day replacement cycle is easy to remember, and I’ve noticed a real difference in output since switching.