(1) A person may not sell or offer for sale any fire hose, fire hydrant, fire engine, or other equipment with threaded parts unless the equipment is fitted and equipped with the threads designated as national standard and adopted by the board and designated by law as the standard of the equipment in the state.
(2) Subsection (1) does not apply to:
(a) equipment sold or offered for sale to a local governing body for the purposes of maintaining, repairing, replacing, or extending existing fire protection equipment as provided in Section 11-4-2; and
(b) adapters and caps for fire protective purposes.