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3/4" (2)
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NPT x NPT (11)
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Heating Supplies & Parts
Pressure Valves
Combo Pressure Valves
Combo Pressure Valves
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More About Combo Pressure Valves
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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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Compare
1/2" FM911 Backflow Preventer & Boiler Fill Valve Assembly (NPT or Sweat)
SKU:
FM911
Resideo Braukmann
SKU:
FM911
Brand:
Resideo Braukmann
(16)
–
+
$112.43
each
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1/2" Boiler Feed Combination w/ Union Press Fitting Connections (NPT or Sweat)
SKU:
NK300S-100UP
Resideo Braukmann
SKU:
NK300S-100UP
Brand:
Resideo Braukmann
–
+
$220.30
each
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Thu, Oct 12
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Thu, Oct 12
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Union Seal Washer (Pack of 10)
SKU:
0901443
Resideo Braukmann
SKU:
0901443
Brand:
Resideo Braukmann
–
+
$24.19
each
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1/2" Boiler Feed Combination (NPT or Sweat)
SKU:
NK300S-100
Resideo Braukmann
SKU:
NK300S-100
Brand:
Resideo Braukmann
(4)
–
+
$198.97
each
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Complete Valve Insert for NK300S-100 and NK300S-100UP, w/out Sieve
SKU:
D04FMA-1/2
Resideo
SKU:
D04FMA-1/2
Brand:
Resideo
(1)
–
+
$36.00
each
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Wed, Oct 25 - Wed, Nov 1
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1/4" NPT Blanking Plug w/ O-Ring for NK300S-100 & NK300S-UP
SKU:
S06K-1/4NPT
Resideo
SKU:
S06K-1/4NPT
Brand:
Resideo
–
+
$16.33
each
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Wed, Oct 25 - Wed, Nov 1
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1/2" Brass Combination Boiler Feed Valve & Backflow (Sweat x NPT)
SKU:
3492-050-BC1
Taco
SKU:
3492-050-BC1
Brand:
Taco
(3)
–
+
$125.80
each
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Thu, Oct 12
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Thu, Oct 12
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1/2" Brass Combination Boiler Feed Valve & Backflow (NPT x NPT)
SKU:
3492-050-BT1
Taco
SKU:
3492-050-BT1
Brand:
Taco
(1)
–
+
$128.05
each
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1/2" Cast Iron Combination Boiler Feed Valve & Backflow (NPT x NPT)
SKU:
3492-050-T1
Taco
SKU:
3492-050-T1
Brand:
Taco
(2)
–
+
$122.24
each
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1/2" Cast Iron Combination Boiler Feed Valve & Backflow (Sweat x NPT)
SKU:
3492-050-C1
Taco
SKU:
3492-050-C1
Brand:
Taco
–
+
$113.30
each
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3/4" Brass Combination Boiler Feed Valve & Backflow (Sweat x NPT)
SKU:
3493-075-BC1
Taco
SKU:
3493-075-BC1
Brand:
Taco
–
+
$132.79
each
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3/4" Brass Combination Boiler Feed Valve & Backflow (NPT x NPT)
SKU:
3493-075-BT1
Taco
SKU:
3493-075-BT1
Brand:
Taco
–
+
$131.57
each
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Thu, Oct 12
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1/2" Brass Combination Boiler Feed Valve & Backflow (Union Press x NPT)
SKU:
3492-050-BH1
Taco
SKU:
3492-050-BH1
Brand:
Taco
–
+
$131.25
each
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1/2" Cast Iron Combination Boiler Feed Valve & Backflow (Union Press x NPT)
SKU:
3492-050-H1
Taco
SKU:
3492-050-H1
Brand:
Taco
–
+
$111.05
each
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Get it by
Wed, Nov 8 - Thu, Dec 7
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Wed, Nov 8 - Thu, Dec 7
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B911, 1/2" Bronze Combination Fill Valve & Backflow Preventer (NPT x NPT)
SKU:
0386463
Watts
SKU:
0386463
Brand:
Watts
(14)
–
+
$192.63
each
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Thu, Oct 12
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B911S, 1/2" Bronze Combination Fill Valve & Backflow Preventer (Sweat x NPT)
SKU:
0386462
Watts
SKU:
0386462
Brand:
Watts
(12)
–
+
$192.63
each
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Get 273 by
Thu, Oct 12
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1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (NPT x NPT)
SKU:
573012A
Caleffi
SKU:
573012A
Brand:
Caleffi
(4)
–
+
$179.56
each
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1/2" 573 Backflow Preventer & AutoFill Combination w/ Pressure Gauge (Sweat x NPT)
SKU:
573019A
Caleffi
SKU:
573019A
Brand:
Caleffi
(5)
–
+
$165.99
each
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1/2" 573 Backflow Preventer and AutoFill Combination (NPT x NPT)
SKU:
573002A
Caleffi
SKU:
573002A
Brand:
Caleffi
(3)
–
+
$132.68
each
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Thu, Oct 12
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1/2" 573 Backflow Preventer and AutoFill Combination (Sweat x NPT)
SKU:
573009A
Caleffi
SKU:
573009A
Brand:
Caleffi
(6)
–
+
$109.82
each
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Thu, Oct 12
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Thu, Oct 12
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1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (Press x Press)
SKU:
573016A
Caleffi
SKU:
573016A
Brand:
Caleffi
(1)
–
+
$179.55
each
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Get 269 by
Thu, Oct 12
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Thu, Oct 12
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BD911, 1/2" Combination Bronze Dial Set Fill Valve & Backflow Preventer (Sweat x NPT)
SKU:
0386468
Watts
SKU:
0386468
Brand:
Watts
–
+
$213.10
each
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Get it by
Wed, Oct 25 - Wed, Nov 1
Get it by
Wed, Oct 25 - Wed, Nov 1
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BD911, 1/2" Combination Bronze Dial Set Fill Valve & Backflow Preventer (NPT x NPT)
SKU:
0386469
Watts
SKU:
0386469
Brand:
Watts
(1)
–
+
$213.10
each
ADD TO CART
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Get it by
Wed, Oct 25 - Wed, Nov 1
Get it by
Wed, Oct 25 - Wed, Nov 1
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1/2" Combination Boiler Feed Valve & Backflow (NPT x Sweat)
SKU:
3450-2
Taco
SKU:
3450-2
Brand:
Taco
(3)
–
+
$112.37
each
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Inventory Details
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Filter & Sort
43 items
Reset
SORT
Top Sellers
Default
Price ▲
Price ▼
Product Availability
–
Show
In Stock Only
(32)
Brand
–
Bell & Gossett (3)
Caleffi (9)
Resideo (2)
Resideo Braukmann (4)
Taco (16)
Watts (9)
Size
–
1/2" (36)
3/4" (2)
Connection Type
–
NPT x NPT (11)
NPT x Sweat (4)
Press x NPT (5)
Press x Press (4)
Sweat (3)
Sweat x NPT (10)
Sweat x Sweat (3)
Threaded (6)
Material
–
Brass (19)
Bronze (6)
Cast Iron (9)