Part # Description 6Ton 8Ton 10Ton 15Ton 20Ton 30Ton 131853P1 VALVE H2O REG 3WAY 1" UB 2 2 2 2     131853P2 VALVE H2O REG 3WAY 1-1/4"         2 2 Standard Pressure Water or Glycol P-311B VALVE H2O REG 3WAY 1" 2 2 2 2 2 2 171818P4 VALVE H2O REG 3WAY 1" 350# 2 2 2 2     High Pressure Water or Glycol 131853P1 VALVE H2O REG 3WAY 1" UB 2 2 2 2     131853P2 VALVE H2O REG 3WAY 1-1/4"         2   125673P1 VALVE H2O REG 3WAY 1-1/2"           2 Standard Pressure Glycool P-311B VALVE H2O REG 3WAY 1" 2 2 2 2 2 2 171818P4 VALVE H2O REG 3WAY 1" 350# 2 2 2 2     High Pressure Glycool