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Starting Member

Posts: 1

Location: Houston


Saturday, June 18th 2011, 1:19pm

Wilkins 420 or 720AA?

My current system has a wilkins 420 PVB but being a rookie with inground systems, I allowed it to freeze this past winter. I tried the rebuild kit butg no help then I found a crack in the casing.

My question is: can I replace the 420 with a 720A and be ok?


Supreme Member

Posts: 5,203

Location: Metro NYC


Saturday, June 18th 2011, 1:26pm

Sure, but the 720 is just as freeze-able

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