Combo Pressure Valves

This category contains fill valve and backflow preventer combinations. These valves are designed to provide make-up water to the boiler and prevent backflow when supply pressure falls below system pressure.

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  • 1/2" 9-11TM3 (Combination 1156F - 9D (Threaded) View Specs

    $96.95 / each

    $467.75 / box
    5 x $93.55

    In Stock! (13 Available) Ships in 24-48 Hrs
  • 1/2" 9-11S M3 (Combination 1156 - 9D (Sweat) View Specs

    $101.95 / each

    $491.75 / box
    5 x $98.35

    In Stock! (10 Available) Ships in 24-48 Hrs
  • B911S, 1/2" Bronze Combination Fill Valve & Backflow Preventer, Sweat View Specs

    $70.95 / each

    $342.25 / box
    5 x $68.45

    In Stock! (163 Available) Ships in 24-48 Hrs
  • B911, 1/2" Bronze Combination Fill Valve & Backflow Preventer, Threaded View Specs

    $70.95 / each

    $342.25 / box
    5 x $68.45

    In Stock! (104 Available) Ships in 24-48 Hrs
  • 1/2" Combo Backflow Preventer & Boiler Fill Valve (Cast Iron) View Specs

    $117.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1/2" Combo Backflow Preventer & Fill Valve (Bronze) View Specs

    $125.95 / each

    In Stock! (1 Available) Ships in 24-48 Hrs
  • 1/2" FM911 Backflow Preventer & Boiler Fill Valve Assembly (Threaded) View Specs

    $71.50 / each

    $279.80 / box
    4 x $69.95

    In Stock! (17 Available) Ships in 24-48 Hrs
  • 1/2" 573 Backflow Preventer and AutoFill Combination (Threaded) View Specs

    $101.95 / each

    $295.05 / box
    3 x $98.35

    In Stock! (21 Available) Ships in 24-48 Hrs
  • 1/2" 573 Backflow Preventer and AutoFill Combination (Sweat) View Specs

    $101.95 / each

    $295.05 / box
    3 x $98.35

    In Stock! (34 Available) Ships in 24-48 Hrs
  • F-3 Dual Unit Valve w/ Fast Fill View Specs
    • SKU: 110197
    • Brand: Bell & Gossett

    $99.95 / each

    $385.80 / box
    4 x $96.45

    In Stock! (222 Available) Ships in 24-48 Hrs
  • F-3TU Dual Unit Pressure Reducing Valve w/ Fast Fill Feature (Lead Free) View Specs

    $116.95 / each

    In Stock! (2 Available) Ships in 24-48 Hrs
  • Model 8 Dual Unit Pressure Reducing Valve View Specs
    • SKU: 110199
    • Brand: Bell & Gossett

    $83.95 / each

    In Stock! (28 Available) Ships in 24-48 Hrs
  • Taco Dual Unit Valve (Threaded) View Specs
    • SKU: 334-T3
    • Brand: Taco

    $62.25 / each

    $362.10 / box
    6 x $60.35

    In Stock! (1124 Available) Ships in 24-48 Hrs
  • Taco Cast Iron Pressure Reducing Valve, Dual Control (Sweat) View Specs

    $92.95 / each

    $360.60 / box
    4 x $90.15

    In Stock! (9 Available) Ships in 24-48 Hrs
  • 1/2" 1450F Pressure Regulator & Relief Combo (Threaded) View Specs

    $63.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1/2" S1450F Pressure Regulator & Relief Combo (Sweat) View Specs

    $77.95 / each

    In Stock! (1 Available) Ships in 24-48 Hrs
  • 1/2" T1450F Pressure Regulator & Relief Combo (Union Threaded) View Specs

    $63.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out

More About Combo Pressure Valves

This category contains fill valve and backflow preventer combinations. These valves are designed to provide make-up water to the boiler and prevent backflow when supply pressure falls below system pressure.