SE41 Diaphragm pack - JDK150 / JDK200 / JDK250 / JDK300 / JDK400 / -JDK500

Fits JDK-S-150, JDK-S-200, JDK-S-250, JDK-S-300*, JDK-S-400* and JDK-S-500* pumps.

Contains two diaphragms and we strongly advise changing both diaphragms at the same time.

*Twin head pumps will need two of these packs