From Tech Data Sheet
Unit is constructed of bronze
The valve delivers a flow rate of 1 to 78 GPM (3
The current Justrite/Hughes part number is H5G45G-1H
Cold-Weather Rating: Intended for use down to -40°F
Speakman SE-820 Stainless Steel Safety Drench Shower Replacement Head Drench Hoses From Tech Data SheetIntegral 20 gpm flow regulator Disperses water evenly Retrofits existing emergency showers Stainless Steel Drains water completely after use Showerhead, 8 In., Stainless Steel. For Use With Mfr. Model Number SE 1200, SE 1250, SE 220, SE 227, SE 603, SE 609, SE 616, SE 675, SE 690, SE 693, SE 695, SE 697, SE 7000, Fits Brand Speakman Optimus, Lifesaver, Traditional, Select Series and Heat Traced Combinations