Yes, you can purchase just the pressure switch for the Delavan 7812-201 Electric Pump. Please contact Delavan directly to purchase that at 612-333-3189.
The Delavan 7812201 Electric Pump is threaded and the Delavan 7802-201 Electric Pump is quick attached so you put it in and snap it shut. You will need to check which one will fit your needs.
We do apologize but are not aware of a pressure switch being available for the Delavan 7812-201 Electric Pump. We would recommend contacting Devalan directly to confirm availibity. They can be reached at 1-866-DELAVAN (335-2826)
For technical assistance, please contact Precision Chemical directly to troubleshoot the Delavan 7812-201 Electric Pump. Precision Chemical can be reached at 225-291-6164