Thread: PGP Ultra
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Old 07-09-2011, 08:57 AM
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STL is Safe-T-Lawn, who made the stainless-steel-topped ball-drive rotors that keep clicking along, over 30 years after they were manufactured (in Miami)

10-year systems were not the norm, and they would have been something beyond the ordinary, like Toro Stream Rotors, and the heads all have swing joints. Electromechanical controllers, too.
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