Hakko Diaphragm Kit - HK-D150/200/250

The Hakko Diaphragm Kits are a replacement kit for the Hakko/Matala Air Pumps. If your pump is working yet not pushing any air out it is most likely that your diaphragm needs to be replaced.

If your diaphragms are blowing out often they you might have too much back pressure and will need to check your airstones for calcium buildup. If you don't have enough air stones or air diffusers for your Hakko Air Pump then that can cause back pressure and also over heat your air pump.