Single/Dual

• Single (497)
• Dual Assembly With Unions (257)
• Dual Assembly Without Unions (257)

Model Number

• 800 OP Series (45)
• 800 Series (48)
• 801 Series (45)
• 801DHC Series (45)
• 803 Series (48)
• 804 Series (45)
• 804R Series (45)
• 805 Series (45)
• 805R Series (45)
• 812 Series (45)
• 813 Series (45)
• 814 Series (45)
• 815 Series (45)
• 850/851 Series (72)
• 850R/851R Series (72)
• 901/903 Series (96)
• CS5602A Series (45)
• CS5602B Series (45)
• CS5602C Series (45)
• CS5602R Series (45)

Inlet Connection

• 1/2" (501)
• 3/4" (183)
• 1" (183)
• 1-1/4" (96)
• 1-1/2" (48)

Inlet Connection Style

• FNPT (867)
• MNPT (144)

Outlet Connection

• 3/4" (276)
• 1" (315)
• 1-1/4" (135)
• 1-1/2" (117)
• 2" (120)
• 3" (48)

Outlet Connection Style

• FNPT (891)
• MNPT (120)

Pressure Relief Setting

• Custom (71)
• 50 PSI (6)
• 75 PSI (51)
• 100 PSI (51)
• 125 PSI (51)
• 150 PSI (71)
• 175 PSI (71)
• 200 PSI (71)
• 225 PSI (71)
• 250 PSI (71)
• 275 PSI (71)
• 300 PSI (71)
• 325 PSI (71)
• 350 PSI (71)
• 375 PSI (71)
• 400 PSI (71)