Taco --007

Bruce M.

Does anybody know the difference in these three circulators. The F5 is the latest model and replaced the F4 which replaced the F3.

oil-2-4-6-gas

.

date code

oil-2-4-6-gas

.

date code

oil-2-4-6-gas

.

date code

oil-2-4-6-gas

.

date code or lot code

Bruce M.

It is not a date code but a model number

They have different motor housings but I am trying to find out if they have different performance curves.

Unknown

TACO007

There is no difference in performance. -3-4-5 are only model numbers, changed because of various design changes/improvements. There are many old -1's still out there running. No matter what the - number, a great product.