The Rain Bird 14VH Impact Sprinkler's are used in undertree, overtree, overvine and row crop solid set and permanent systems. They are an excellent frost-protection/irrigation sprinkler. The 14VH has a patented self-flushing nylon "V" wedge which makes it a strong-driving sprinkler, even with the smallest nozzles. 

• 15mm MI BSP brass inlet
• Full circle operation
• Patented, self-flushing wedge drive to operate with smaller nozzles and lower operating pressure
• Durable brass die-cast arm
• Stainless steel springs and fulcrum pin
• Chemically resistant washers
• For use with Rain Bird SBN-1 Straight Bore Nozzle, sold separately