Single/Dual

• Single (144)

Model Number

• 850/851 Series (48)
• 850R/851R Series (48)
• 901/903 Series (48)

Inlet Connection Style

• FNPT (48)
• MNPT (96)

Outlet Connection

• 1-1/2" (48)
• 2" (72)
• 3" (24)

Outlet Connection Style

• FNPT (72)
• MNPT (72)

Pressure Relief Setting

• Custom (12)
• 150 PSI (12)
• 175 PSI (12)
• 200 PSI (12)
• 225 PSI (12)
• 250 PSI (12)
• 275 PSI (12)
• 300 PSI (12)
• 325 PSI (12)
• 350 PSI (12)
• 375 PSI (12)
• 400 PSI (12)

Valve Finish

• Anodized Aluminum (48)
• Ductile Iron (96)

Brands

• Cyrus Shank (144)