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can 007-F5 be replaced with 007-F5-IFC?
I have a one zone hot water heating system with one 007-F5 circulator and there is no flow check valve installed for that zone. I am planning added another two zones. Then the existing loop needs a flow check valve. I am thinking replace that existing 007-F5 circulator with a 007-F5-IFC circulator to avoid adding a flow check valve in the existing zone. The new zones will use 007-F5-IFC circulators.
My question is do these two circulators have the same installation sizes?