Am I buying the right backwash valve?

poollizard

Active member
Jul 4, 2010
26
Apple Valley, California
I need to replace my backwash valve. My system is very old and beat up by the sun. Here's a link to the valve I am considering:

http://www.poolplaza.com/P-PEN-263034-3184.html

Is this the right valve for my filter?

Not being very experienced with pool equipment, I want to make sure I'm buying the right stuff. Also, since my equipment is very old, the part numbers don't always match what I find on the internet.

Thank you for all comments.

Below are pics of my PAC-FAB DE filter...
 

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