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Blue Diamond ET Pump Replacement Diaphragm & Rebuild Kit

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  • Replacement diaphragm and rebuild kits for ET Series Compressors by Blue Diamond.
  • Includes replacement diaphragm and magnet.
  • Like a linear diaphragm compressors, yearly maintenance is recommended to keep pump running at optimal output.
  • Compatible with Blue Diamond ET series pumps, both base model pumps as well as deluxe models with alarm add-on.


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Is your Blue Diamond ET pump not pushing as much air as it used to? Does the pump hum and sound like it's running but your diffusers aren't producing any bubbles? 

Linear compressors periodically need their diaphragms replaced in order to keep the pump at optimal operation. With the Blue Diamond ET Pump Replacement Diaphragm & Rebuild Kit you can restore your pump to a like new level of performance.

Each kit includes replacement rubber diaphragms and a replacement magnet.


SKET30 - Compatible with ET30 & ET30A pumps
SKET40 - Compatible with ET40 & ET40A pumps
SKET60 - Compatible with ET60 & ET60A pumps
SKET80 - Compatible with ET80 & ET80A pumps
SKET100 - Compatible with ET100 & ET100A pumps
SKET120 - Compatible with ET120 & ET120A pumps

  • 4
    Difficult to attach diaphragms

    Posted by Max Peters on May 26th 2021

    After over an hour working to get a good fit on the diaphragms, we called the company. They reported the material has changed and they don't seat well any more. But they confirmed it was the right product and said just to "make it fit" and it will work. We did, but it would be nice to have known that from the beginning.