Model Number

• H2 (38)
• H3 (31)
• H4 (26)
• H5 (24)

Inlet Connection

• 1 in (25)
• 1-1/4 in (24)
• 1/2 in (38)
• 3/4 in (32)

Pressure Relief Setting

• 150PSI (6)
• 250PSI (4)
• 300PSI (4)
• 50PSI (4)
• 55PSI (1)
• 60PSI (3)
• 65PSI (2)
• 70PSI (1)
• 75PSI (4)
• 80PSI (3)
• 90PSI (4)
• 100PSI (4)
• 110PSI (2)
• 120PSI (3)
• 125PSI (4)
• 130PSI (2)
• 135PSI (4)
• 140PSI (1)
• 155PSI (1)
• 165PSI (3)
• 170PSI (3)
• 174PSI (1)
• 175PSI (4)
• 180PSI (4)
• 185PSI (4)
• 190PSI (3)
• 200PSI (4)
• 213PSI (1)
• 220PSI (2)
• 225PSI (4)
• 230PSI (2)
• 232PSI (1)
• 235PSI (4)
• 240PSI (3)
• 245PSI (1)
• 255PSI (2)
• 260PSI (4)
• 265PSI (4)
• 270PSI (2)
• 275PSI (3)
• 280PSI (1)
• 285PSI (1)
• 290PSI (1)