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  • 1/2" Brass Combination Boiler Feed Valve & Backflow (Sweat x NPT) Product Image
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    1/2" Brass Combination Boiler Feed Valve & Backflow (Sweat x NPT) 3492-050-BC1 1/2" Brass Combination Boiler Feed Valve & Backflow (Sweat x NPT)
    SKU: 3492-050-BC1
    Brand: Taco
    $89.99 each
    21
    Fri, Dec 11
    44
    QtyArrives
    21 Fri, Dec 11
    23 Tue, Dec 15 – Wed, Dec 16
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  • 1/2" Brass Combination Boiler Feed Valve & Backflow (NPT x NPT) Product Image
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    1/2" Brass Combination Boiler Feed Valve & Backflow (NPT x NPT) 3492-050-BT1 1/2" Brass Combination Boiler Feed Valve & Backflow (NPT x NPT)
    SKU: 3492-050-BT1
    Brand: Taco
    (1)
    $97.99 each
    48
    Fri, Dec 11
    63
    QtyArrives
    48 Fri, Dec 11
    15 Tue, Dec 15 – Wed, Dec 16
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  • 1/2" Cast Iron Combination Boiler Feed Valve & Backflow (NPT x NPT) Product Image
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    1/2" Cast Iron Combination Boiler Feed Valve & Backflow (NPT x NPT) 3492-050-T1 1/2" Cast Iron Combination Boiler Feed Valve & Backflow (NPT x NPT)
    SKU: 3492-050-T1
    Brand: Taco
    (1)
    $95.99 each
    24
    Fri, Dec 11
    30
    QtyArrives
    24 Fri, Dec 11
    6 Tue, Dec 15 – Wed, Dec 16
    Questions? Call 1-888-757-4774
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  • 1/2" Cast Iron Combination Boiler Feed Valve & Backflow (Sweat x NPT) Product Image
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    1/2" Cast Iron Combination Boiler Feed Valve & Backflow (Sweat x NPT) 3492-050-C1 1/2" Cast Iron Combination Boiler Feed Valve & Backflow (Sweat x NPT)
    SKU: 3492-050-C1
    Brand: Taco
    $79.99 each
    Mon, Dec 28 – Tue, Jan 5
    Arrives
    Mon, Dec 28 – Tue, Jan 5
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • 3/4" Brass Combination Boiler Feed Valve & Backflow (Sweat x NPT) Product Image
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    3/4" Brass Combination Boiler Feed Valve & Backflow (Sweat x NPT) 3493-075-BC1 3/4" Brass Combination Boiler Feed Valve & Backflow (Sweat x NPT)
    SKU: 3493-075-BC1
    Brand: Taco
    $93.88 each
    Mon, Dec 28 – Tue, Jan 5
    Arrives
    Mon, Dec 28 – Tue, Jan 5
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • 3/4" Brass Combination Boiler Feed Valve & Backflow (NPT x NPT) Product Image
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    3/4" Brass Combination Boiler Feed Valve & Backflow (NPT x NPT) 3493-075-BT1 3/4" Brass Combination Boiler Feed Valve & Backflow (NPT x NPT)
    SKU: 3493-075-BT1
    Brand: Taco
    $95.15 each
    15
    Fri, Dec 11
    15
    QtyArrives
    15 Fri, Dec 11
    Questions? Call 1-888-757-4774
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  • 1/2" Brass Combination Boiler Feed Valve & Backflow (Union Press x NPT) Product Image
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    1/2" Brass Combination Boiler Feed Valve & Backflow (Union Press x NPT) 3492-050-BH1 1/2" Brass Combination Boiler Feed Valve & Backflow (Union Press x NPT)
    SKU: 3492-050-BH1
    Brand: Taco
    $96.79 each
    Mon, Dec 28 – Tue, Jan 5
    Arrives
    Mon, Dec 28 – Tue, Jan 5
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • 1/2" Cast Iron Combination Boiler Feed Valve & Backflow (Union Press x NPT) Product Image
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    1/2" Cast Iron Combination Boiler Feed Valve & Backflow (Union Press x NPT) 3492-050-H1 1/2" Cast Iron Combination Boiler Feed Valve & Backflow (Union Press x NPT)
    SKU: 3492-050-H1
    Brand: Taco
    $84.99 each
    Mon, Dec 28 – Tue, Jan 5
    Arrives
    Mon, Dec 28 – Tue, Jan 5
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • B911, 1/2" Bronze Combination Fill Valve & Backflow Preventer (NPT x NPT) Product Image
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    B911, 1/2" Bronze Combination Fill Valve & Backflow Preventer (NPT x NPT) 0386463 B911, 1/2" Bronze Combination Fill Valve & Backflow Preventer (NPT x NPT)
    SKU: 0386463
    Brand: Watts
    (13)
    $120.92 each
    Wed, Dec 16 – Fri, Dec 18
    Arrives
    Wed, Dec 16 – Fri, Dec 18
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • B911S, 1/2" Bronze Combination Fill Valve & Backflow Preventer (Sweat x NPT) Product Image
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    B911S, 1/2" Bronze Combination Fill Valve & Backflow Preventer (Sweat x NPT) 0386462 B911S, 1/2" Bronze Combination Fill Valve & Backflow Preventer (Sweat x NPT)
    Contains Lead
    SKU: 0386462
    Brand: Watts
    (8)
    $120.92 each
    179
    Fri, Dec 11
    179
    QtyArrives
    179 Fri, Dec 11
    Questions? Call 1-888-757-4774
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  • 1/2" FM911 Backflow Preventer & Boiler Fill Valve Combo (NPT or Sweat) Product Image
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    1/2" FM911 Backflow Preventer & Boiler Fill Valve Combo (NPT or Sweat) FM911 1/2" FM911 Backflow Preventer & Boiler Fill Valve Combo (NPT or Sweat)
    SKU: FM911
    Brand: Honeywell
    (10)
    $84.51 each
    191
    Fri, Dec 11
    191
    QtyArrives
    191 Fri, Dec 11
    Questions? Call 1-888-757-4774
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  • 1/2" 573 Backflow Preventer & AutoFill Combo w/ Gauge (NPT x NPT) Product Image
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    1/2" 573 Backflow Preventer & AutoFill Combo w/ Gauge (NPT x NPT) 573012A 1/2" 573 Backflow Preventer & AutoFill Combo w/ Gauge (NPT x NPT)
    SKU: 573012A
    Brand: Caleffi
    (4)
    $124.99 each
    135
    Fri, Dec 11
    139
    QtyArrives
    135 Fri, Dec 11
    4 Tue, Dec 15 – Wed, Dec 16
    Questions? Call 1-888-757-4774
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  • 1/2" 573 Backflow Preventer & AutoFill Combination w/ Pressure Gauge (Sweat x NPT) Product Image
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    1/2" 573 Backflow Preventer & AutoFill Combination w/ Pressure Gauge (Sweat x NPT) 573019A 1/2" 573 Backflow Preventer & AutoFill Combination w/ Pressure Gauge (Sweat x NPT)
    SKU: 573019A
    Brand: Caleffi
    (4)
    $119.99 each
    65
    Fri, Dec 11
    66
    QtyArrives
    65 Fri, Dec 11
    1 Tue, Dec 15 – Wed, Dec 16
    Questions? Call 1-888-757-4774
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  • 1/2" 9-11S M3 (Combination 1156 - 9D (Sweat x NPT) Product Image
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    1/2" 9-11S M3 (Combination 1156 - 9D (Sweat x NPT) 0386461 1/2" 9-11S M3 (Combination 1156 - 9D (Sweat x NPT)
    SKU: 0386461
    Brand: Watts
    (7)
    $134.99 each
    15
    Fri, Dec 11
    15
    QtyArrives
    15 Fri, Dec 11
    Questions? Call 1-888-757-4774
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  • 1/2" Boiler Feed Combination (NPT or Sweat) Product Image
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    1/2" Boiler Feed Combination (NPT or Sweat) NK300S-100 1/2" Boiler Feed Combination (NPT or Sweat)
    SKU: NK300S-100
    Brand: Honeywell
    (3)
    $135.79 each
    26
    Fri, Dec 11
    26
    QtyArrives
    26 Fri, Dec 11
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  • Union Seal Washer (Pack of 10) Product Image
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    Union Seal Washer (Pack of 10) 0901443 Union Seal Washer (Pack of 10)
    SKU: 0901443
    Brand: Honeywell
    $19.39 each
    2
    Fri, Dec 11
    2
    QtyArrives
    2 Fri, Dec 11
    Questions? Call 1-888-757-4774
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  • 1/2" Boiler Feed Combination w/ Union Press Fitting Connections (NPT or Sweat) Product Image
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    1/2" Boiler Feed Combination w/ Union Press Fitting Connections (NPT or Sweat) NK300S-100UP 1/2" Boiler Feed Combination w/ Union Press Fitting Connections (NPT or Sweat)
    SKU: NK300S-100UP
    Brand: Honeywell
    $164.99 each
    Tue, Dec 22 – Mon, Dec 28
    Arrives
    Tue, Dec 22 – Mon, Dec 28
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • 1/2" 573 Backflow Preventer and AutoFill Combination (NPT x NPT) Product Image
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    1/2" 573 Backflow Preventer and AutoFill Combination (NPT x NPT) 573002A 1/2" 573 Backflow Preventer and AutoFill Combination (NPT x NPT)
    SKU: 573002A
    Brand: Caleffi
    (2)
    $103.99 each
    118
    Fri, Dec 11
    125
    QtyArrives
    118 Fri, Dec 11
    7 Tue, Dec 15 – Wed, Dec 16
    Questions? Call 1-888-757-4774
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  • Complete Valve Insert for NK300S-100 and NK300S-100UP, w/out Sieve Product Image
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    Complete Valve Insert for NK300S-100 and NK300S-100UP, w/out Sieve D04FMA-1/2 Complete Valve Insert for NK300S-100 and NK300S-100UP, w/out Sieve
    SKU: D04FMA-1/2
    Brand: Honeywell
    (1)
    $30.60 each
    1
    Fri, Dec 11
    1
    QtyArrives
    1 Fri, Dec 11
    Questions? Call 1-888-757-4774
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  • 1/2" 573 Backflow Preventer and AutoFill Combination (Sweat x NPT) Product Image
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    1/2" 573 Backflow Preventer and AutoFill Combination (Sweat x NPT) 573009A 1/2" 573 Backflow Preventer and AutoFill Combination (Sweat x NPT)
    SKU: 573009A
    Brand: Caleffi
    (6)
    $94.79 each
    112
    Fri, Dec 11
    125
    QtyArrives
    112 Fri, Dec 11
    13 Tue, Dec 15 – Wed, Dec 16
    Questions? Call 1-888-757-4774
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  • 1/4" NPT Blanking Plug w/ O-Ring for NK300S-100 & NK300S-UP Product Image
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    1/4" NPT Blanking Plug w/ O-Ring for NK300S-100 & NK300S-UP S06K-1/4NPT 1/4" NPT Blanking Plug w/ O-Ring for NK300S-100 & NK300S-UP
    SKU: S06K-1/4NPT
    Brand: Honeywell
    $13.89 each
    7
    Fri, Dec 11
    7
    QtyArrives
    7 Fri, Dec 11
    Questions? Call 1-888-757-4774
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  • 1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (Press x Press) Product Image
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    1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (Press x Press) 573016A 1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (Press x Press)
    SKU: 573016A
    Brand: Caleffi
    $133.19 each
    11
    Fri, Dec 11
    11
    QtyArrives
    11 Fri, Dec 11
    Questions? Call 1-888-757-4774
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  • BD911, 1/2" Combination Bronze Dial Set Fill Valve & Backflow Preventer (Sweat x NPT) Product Image
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    BD911, 1/2" Combination Bronze Dial Set Fill Valve & Backflow Preventer (Sweat x NPT) 0386468 BD911, 1/2" Combination Bronze Dial Set Fill Valve & Backflow Preventer (Sweat x NPT)
    SKU: 0386468
    Brand: Watts
    $129.99 each
    Tue, Dec 22 – Mon, Dec 28
    Arrives
    Tue, Dec 22 – Mon, Dec 28
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • BD911, 1/2" Combination Bronze Dial Set Fill Valve & Backflow Preventer (NPT x NPT) Product Image
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    BD911, 1/2" Combination Bronze Dial Set Fill Valve & Backflow Preventer (NPT x NPT) 0386469 BD911, 1/2" Combination Bronze Dial Set Fill Valve & Backflow Preventer (NPT x NPT)
    SKU: 0386469
    Brand: Watts
    (1)
    $125.99 each
    Tue, Dec 22 – Mon, Dec 28
    Arrives
    Tue, Dec 22 – Mon, Dec 28
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
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  • 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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