F950's in the mid-seventies (1977 or so) with Duraspeed before that, and it looked the same.
Steve, did you get my email about CA questions? Scott (763) 425-1001x12 Office (612) 759-5556 Cell -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Steve Leyton Sent: Tuesday, June 17, 2014 1:51 PM To: AFSA Subject: Guessing age of system Anyone know when Grinnell first started making the F950? Also, what vintage would we guess a 4" thrd X 2-1/2" thrd X 4" flg tee to be? Steve _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
