Whats the difference between professional grade and cheaper retail parts?
Professional grade parts are often made by the same manufacturers as consumer grade parts, although the commercial parts carry longer warranties, and have features not found in cheaper parts making them easier to install, more efficient and more reliable. Close inspection often reveals important differences. It may be a Toro 570 sprinkler, but is it a 570Z or a 570C? The Z model has improved seals. The Rain Bird commercial sprinklers come with a flush plug installed, saving you hours of nozzle flushing and filter cleaning. Commercial sprinklers have check valve and flow control options which are actually required in many locations. In almost every case, the consumer line is the five or ten year old commercial line of the same manufacturer, or a commercial line that has been unsuccessful competing in the commercial market.
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