Junkers automatic heater membrane (e) 87005030850

Junkers WRD11 Automatic Heater Membrane

automatic water heater diaphragm Junkers.
This diaphragm has the letter E printed on the top of the metal plunger.
However, if your water heater is listed below in the compatible models, this diaphragm is the correct one for your heater.
It's possible that your original diaphragm was yellow. Junkers replaced all the yellow diaphragms with these much more durable, transparent silicone ones some time ago.

If your diaphragm is torn or damaged, your Junkers heater may not ignite, spark, or heat up sufficiently.