I had some Hunter PGP sprinkler heads installed several years ago by a
professonal irrigation company. At the time, they claimed that these heads
were of a "Professional" grade, and were not the same Hunter heads that
could be bought in a Home Depot, Ace Hardware, etc.

Does anyone know if Hunter makes a "professional" sprinkler head, that are
not sold in common stores like Home Depot, Ace Hardware, etc ???

Thanks for any comments !!

--James--