AR43291 AR50 Desmopan Diaphragm Kit

AR43291 AR50 Desmopan Diaphragm Kit

Item Code:
0.25 lb
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Use the AR43291 repair kit to change out the diaphragms on your AR50 pump. Diaphragms are the most common wear part on these pumps and if they rupture make sure to change them out immediately. This kit contains diaphragms and o-rings.

Manufacturer Description:

The AR50 Diaphragm Repair Kit (AR43291) will provide repairs for the diaphragms on your AR50 pump. This kit includes Desmopan diaphragms* BlueFlex (AR43293) and Buna kits (AR43290) are also available. If the oil in your diaphragm pump has a milky gray color, you most likely will need to replace the diaphragms. Running a diaphragm pump with oil that is mixed with chemical can cause extensive damage to your pump. Keep this kit handy if your AR50 is in constant use. We recommend changing the diaphragms every 3 months or 500 hours of use.


  • AR43293 Includes:
  • Qty 2 650085 Piston Diaphragm, Desmopan®
  • Qty 4 320030 O-Ring
  • Qty 1 650520 Accumulator Diaphragm, Buna