AY McDonald requires that we display a price that is at or above manufacturer’s established price. Since our price for the product is lower than MAP, the manufacturer does not allow us to display discounted price unless you add item to the cart. The process does not require you to purchase the product. It can be removed from the cart anytime.
In many of today’s potable hot water heating systems, back flow preventers are required by
code. Since this seals off the system, an expansion tank is required or the relief valve will
discharge on every heating cycle. DuraMACTM Expansion Tanks eliminate this wasteful and
costly practice.
The MPIX and MPI series has all the features of the MH series, but includes a powder coated
liner in the water containing area. This unique bonded surface provides positive protection
against rust and corrosion and meets today’s sanitation requirements. For other conditions,
please contact our Pump Department for assistance.
DuraMACTM Expansion Tanks must be installed on the cold water supply side of the water
heater and placed between the water heater and check valve or back flow prevention device.
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