Model Number

• 850/851 Series (24)
• 850R/851R Series (24)
• 901/903 Series (48)

Inlet Connection Style

• FNPT (48)
• MNPT (48)

Outlet Connection

• 1-1/2" (24)
• 2" (48)
• 3" (24)

Outlet Connection Style

• FNPT (48)
• MNPT (48)

Pressure Relief Setting

• Custom (8)
• 150 PSI (8)
• 175 PSI (8)
• 200 PSI (8)
• 225 PSI (8)
• 250 PSI (8)
• 275 PSI (8)
• 300 PSI (8)
• 325 PSI (8)
• 350 PSI (8)
• 375 PSI (8)
• 400 PSI (8)

Brands

• Cyrus Shank (96)