For HIBLOW TAKATSUKI HP 120
2x pump heads with valves
2x membrane sets
2x diaphragm rings
2x nuts
1x security pin
Diaphragms are wearing parts whose lifetime is limited.
The life of a diaphragm depends on various factors of the air pump.
If there is a material fatigue of the diaphragm, the air pump no longer aids.
The diaphragm must be replaced at the latest.
Change diaphragm only in pairs.