49 PRO 專用 O 型環套件（5 個 O 型環）

My 49 Pro was leaking from the stem and the brew cylinder, but swapping in these o-rings fixed it immediately—the fit is exact and the set even includes two spares for the plunger. Took about ten minutes to replace everything and now it's holding pressure perfectly.

The plunger o-rings are what I needed, and the set covers the stem and brew cylinder too, so I don't have to hunt down spares later. Wasn't sure about the sizing, but they pressed in without any fuss.

My old 49 PRO was leaking from the pressure gauge area, but swapping in that specific o-ring from this set solved it completely. The stem ring is also a touch thicker than the original, which made for a snugger fit. Glad I grabbed the five-pack so I've got spares ready when the next one wears out.