From the manufacturer:
Unit is constructed of bronze
The valve delivers a flow rate of 1 to 78 GPM (3
From Tech Data Sheet
Includes Tyvek® chute and pail to contain tested water flow and prevent spillage
Speakman SE-820 Stainless Steel Safety Drench Shower Replacement Head Drench Hoses From the manufacturer:Integral 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