Hunter I20-04-PRB Pressure Regulated Rotor With Adjustable Arc With Plastic Riser And Check Valve, 4"
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<b>[Product Information]</b><br>
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<li>Models: PGP Ultra: 4", I-20: 4", 6"</li>
<li>Arc setting: 50 to 360 degrees</li>
<li>Factory installed rubber cover</li>
<li>Through-the-top arc adjustment</li>
<li>Quick Check arc mechanism</li>
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