Hunter Technical Support Document
Is there a device to measure pressure at my spray head?
Adjustment, FAQs, Troubleshooting
Hunter manufactures an MP Gauge, this gauge can be used on all Hunter spray heads.
Simply screw the Hunter nozzle of your choice onto the MP Adapters top thread, then apply the MP Adapter's bottom thread to the spray head's riser stem.
MP Gauge (P/N185200) includes:
Note: The gauge will not measure pressure accurately unless water is flowing through the nozzle.