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Heating Supplies & Parts
Pressure Valves
Combo Pressure Valves
Combo Pressure Valves
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0386463 Compare Checkbox
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B911, 1/2" Bronze Combination Fill Valve & Backflow Preventer (NPT x NPT)
SKU:
0386463
Watts
SKU:
0386463
Brand:
Watts
(20)
–
+
$284.79
each
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In Stock
Get 89 by
Tue, Jun 16
Total Available: 421
In Stock
Get 89 by
Tue, Jun 16
Total Available: 421
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FM911 Compare Checkbox
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1/2" FM911 Backflow Preventer & Boiler Fill Valve Assembly (NPT or Sweat)
SKU:
FM911
Resideo Braukmann
SKU:
FM911
Brand:
Resideo Braukmann
(20)
–
+
$146.34
each
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In Stock
Get 74 by
Tue, Jun 16
Total Available: 259
In Stock
Get 74 by
Tue, Jun 16
Total Available: 259
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3492-050-BC1 Compare Checkbox
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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
(6)
–
+
$148.62
each
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In Stock
Get 17 by
Tue, Jun 16
Total Available: 148
In Stock
Get 17 by
Tue, Jun 16
Total Available: 148
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110197LF Compare Checkbox
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F-3 Dual Unit Valve w/ Fast Fill (Lead Free)
SKU:
110197LF
Bell & Gossett
SKU:
110197LF
Brand:
Bell & Gossett
(5)
–
+
$247.80
each
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In Stock
Get 8 by
Tue, Jun 16
Total Available: 98
In Stock
Get 8 by
Tue, Jun 16
Total Available: 98
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NK300S-100UP Compare Checkbox
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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
–
+
$274.09
each
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In Stock
Get 11 by
Tue, Jun 16
Total Available: 20
In Stock
Get 11 by
Tue, Jun 16
Total Available: 20
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NK300S-100 Compare Checkbox
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1/2" Boiler Feed Combination (NPT or Sweat)
SKU:
NK300S-100
Resideo Braukmann
SKU:
NK300S-100
Brand:
Resideo Braukmann
(4)
–
+
$251.26
each
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In Stock
Get 10 by
Tue, Jun 16
Total Available: 22
In Stock
Get 10 by
Tue, Jun 16
Total Available: 22
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0388798 Compare Checkbox
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1/2" 1450F Pressure Regulator & Relief Combo (Threaded)
SKU:
0388798
Watts
SKU:
0388798
Brand:
Watts
(2)
–
+
$279.04
each
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In Stock
Get 1 by
Tue, Jun 16
Total Available: 8
In Stock
Get 1 by
Tue, Jun 16
Total Available: 8
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0901443 Compare Checkbox
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Union Seal Washer (Pack of 10)
SKU:
0901443
Resideo Braukmann
SKU:
0901443
Brand:
Resideo Braukmann
–
+
$27.21
each
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In Stock
Get 2 by
Wed, Jun 17
In Stock
Get 2 by
Wed, Jun 17
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0386462 Compare Checkbox
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B911S, 1/2" Bronze Combination Fill Valve & Backflow Preventer (Sweat x NPT)
SKU:
0386462
Watts
SKU:
0386462
Brand:
Watts
(17)
–
+
$233.27
each
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In Stock
Get 40 by
Tue, Jun 16
Total Available: 846
In Stock
Get 40 by
Tue, Jun 16
Total Available: 846
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3492-050-BT1 Compare Checkbox
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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
(3)
–
+
$149.01
each
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In Stock
Get 9 by
Tue, Jun 16
Total Available: 212
In Stock
Get 9 by
Tue, Jun 16
Total Available: 212
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110198LF Compare Checkbox
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F-3TU Dual Unit Pressure Reducing Valve w/ Fast Fill Feature (Lead Free)
SKU:
110198LF
Bell & Gossett
SKU:
110198LF
Brand:
Bell & Gossett
–
+
$237.98
each
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In Stock
Get 2 by
Tue, Jun 16
Total Available: 19
In Stock
Get 2 by
Tue, Jun 16
Total Available: 19
Add to List
0388800 Compare Checkbox
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1/2" S1450F Pressure Regulator & Relief Combo (Sweat)
SKU:
0388800
Watts
SKU:
0388800
Brand:
Watts
–
+
$317.88
each
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Backorder
Get it by
Wed, Jul 15 - Wed, Aug 12
Backorder
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Wed, Jul 15 - Wed, Aug 12
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3492-050-T1 Compare Checkbox
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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
(3)
–
+
$132.50
each
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In Stock
Get 11 by
Tue, Jun 16
Total Available: 120
In Stock
Get 11 by
Tue, Jun 16
Total Available: 120
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110199LF Compare Checkbox
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Model 8 Dual Unit Pressure Reducing Valve (Lead Free)
SKU:
110199LF
Bell & Gossett
SKU:
110199LF
Brand:
Bell & Gossett
(5)
–
+
$177.10
each
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In Stock
Get 9 by
Tue, Jun 16
Total Available: 151
In Stock
Get 9 by
Tue, Jun 16
Total Available: 151
Add to List
0388805 Compare Checkbox
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1/2" T1450F Pressure Regulator & Relief Combo (Union Threaded)
SKU:
0388805
Watts
SKU:
0388805
Brand:
Watts
(3)
–
+
$330.70
each
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Add to List
In Stock
Get 3 by
Wed, Jun 17
Total Available: 5
In Stock
Get 3 by
Wed, Jun 17
Total Available: 5
Add to List
573012A Compare Checkbox
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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
(10)
–
+
$197.48
each
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Add to List
In Stock
Get 36 by
Tue, Jun 16
Total Available: 90
In Stock
Get 36 by
Tue, Jun 16
Total Available: 90
Add to List
3492-050-C1 Compare Checkbox
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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
–
+
$138.08
each
ADD TO CART
Add to List
In Stock
Get 13 by
Tue, Jun 16
Total Available: 72
In Stock
Get 13 by
Tue, Jun 16
Total Available: 72
Add to List
573019A Compare Checkbox
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1/2" 573 Backflow Preventer & AutoFill Combination w/ Pressure Gauge (Sweat x NPT)
SKU:
573019A
Caleffi
SKU:
573019A
Brand:
Caleffi
(6)
–
+
$193.11
each
ADD TO CART
Add to List
In Stock
Get 17 by
Tue, Jun 16
Total Available: 46
In Stock
Get 17 by
Tue, Jun 16
Total Available: 46
Add to List
573002A Compare Checkbox
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1/2" 573 Backflow Preventer and AutoFill Combination (NPT x NPT)
SKU:
573002A
Caleffi
SKU:
573002A
Brand:
Caleffi
(8)
–
+
$153.82
each
ADD TO CART
Add to List
In Stock
Get 54 by
Tue, Jun 16
Total Available: 146
In Stock
Get 54 by
Tue, Jun 16
Total Available: 146
Add to List
573009A Compare Checkbox
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1/2" 573 Backflow Preventer and AutoFill Combination (Sweat x NPT)
SKU:
573009A
Caleffi
SKU:
573009A
Brand:
Caleffi
(9)
–
+
$151.10
each
ADD TO CART
Add to List
In Stock
Get 60 by
Tue, Jun 16
Total Available: 133
In Stock
Get 60 by
Tue, Jun 16
Total Available: 133
Add to List
D04FMA-1/2 Compare Checkbox
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Complete Valve Insert for NK300S-100 and NK300S-100UP, w/out Sieve, D04FMA-1/2
SKU:
D04FMA-1/2
Resideo
SKU:
D04FMA-1/2
Brand:
Resideo
(1)
–
+
$51.19
each
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Backorder
Get it by
Wed, Jul 15 - Wed, Aug 12
Backorder
Get it by
Wed, Jul 15 - Wed, Aug 12
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573016A Compare Checkbox
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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
(4)
–
+
$212.90
each
ADD TO CART
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In Stock
Get 41 by
Tue, Jun 16
Total Available: 79
In Stock
Get 41 by
Tue, Jun 16
Total Available: 79
Add to List
S06K-1/4NPT Compare Checkbox
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1/4" NPT Blanking Plug w/ O-Ring for NK300S-100 & NK300S-UP, S06K-1/4NPT
SKU:
S06K-1/4NPT
Resideo
SKU:
S06K-1/4NPT
Brand:
Resideo
–
+
$19.66
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Jul 15 - Wed, Aug 12
Backorder
Get it by
Wed, Jul 15 - Wed, Aug 12
Add to List
3450-2 Compare Checkbox
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1/2" Combination Boiler Feed Valve & Backflow (NPT x Sweat)
SKU:
3450-2
Taco
SKU:
3450-2
Brand:
Taco
(5)
–
+
$127.11
each
ADD TO CART
Add to List
In Stock
Get 13 by
Tue, Jun 16
Total Available: 91
In Stock
Get 13 by
Tue, Jun 16
Total Available: 91
Add to List
3450-T2 Compare Checkbox
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1/2" Combination Boiler Feed Valve & Backflow (NPT x NPT)
SKU:
3450-T2
Taco
SKU:
3450-T2
Brand:
Taco
(3)
–
+
$130.00
each
ADD TO CART
Add to List
In Stock
Get 21 by
Tue, Jun 16
Total Available: 234
In Stock
Get 21 by
Tue, Jun 16
Total Available: 234
Add to List
3493-075-BC1 Compare Checkbox
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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
–
+
$163.36
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tue, Jun 16
Total Available: 26
In Stock
Get 4 by
Tue, Jun 16
Total Available: 26
Add to List
3493-075-BT1 Compare Checkbox
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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
(1)
–
+
$161.72
each
ADD TO CART
Add to List
In Stock
Get 6 by
Tue, Jun 16
Total Available: 20
In Stock
Get 6 by
Tue, Jun 16
Total Available: 20
Add to List
3492-050-BH1 Compare Checkbox
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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
(1)
–
+
$153.52
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Jun 16
Total Available: 91
In Stock
Get 1 by
Tue, Jun 16
Total Available: 91
Add to List
3492-050-H1 Compare Checkbox
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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
–
+
$142.89
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Jun 16
Total Available: 7
In Stock
Get 2 by
Tue, Jun 16
Total Available: 7
Add to List
0386473 Compare Checkbox
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1/2" B9-11TM3 (Combination 1156F - 9D (Press x Press)
SKU:
0386473
Watts
SKU:
0386473
Brand:
Watts
(1)
–
+
$312.32
each
ADD TO CART
Add to List
In Stock
Get 13 by
Tue, Jun 16
Total Available: 94
In Stock
Get 13 by
Tue, Jun 16
Total Available: 94
Add to List
573006A Compare Checkbox
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1/2" 573 Backflow Preventer and AutoFill Combination (Press x Press)
SKU:
573006A
Caleffi
SKU:
573006A
Brand:
Caleffi
(1)
–
+
$207.74
each
ADD TO CART
Add to List
In Stock
Get 19 by
Tue, Jun 16
Total Available: 35
In Stock
Get 19 by
Tue, Jun 16
Total Available: 35
Add to List
573007A Compare Checkbox
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1/2" 573 Backflow Preventer and AutoFill Combination (Press x NPT)
SKU:
573007A
Caleffi
SKU:
573007A
Brand:
Caleffi
(2)
–
+
$182.29
each
ADD TO CART
Add to List
In Stock
Get 7 by
Tue, Jun 16
Total Available: 21
In Stock
Get 7 by
Tue, Jun 16
Total Available: 21
Add to List
573017A Compare Checkbox
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1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (Press x NPT)
SKU:
573017A
Caleffi
SKU:
573017A
Brand:
Caleffi
(2)
–
+
$173.82
each
ADD TO CART
Add to List
In Stock
Get 32 by
Tue, Jun 16
Total Available: 89
In Stock
Get 32 by
Tue, Jun 16
Total Available: 89
Add to List
3450-H2 Compare Checkbox
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1/2" Combination Boiler Feed Valve & Backflow (Union Press x NPT)
SKU:
3450-H2
Taco
SKU:
3450-H2
Brand:
Taco
–
+
$141.58
each
ADD TO CART
Add to List
In Stock
Get 5 by
Tue, Jun 16
Total Available: 77
In Stock
Get 5 by
Tue, Jun 16
Total Available: 77
Add to List
573100A Compare Checkbox
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Replacement Body with Washers
SKU:
573100A
Caleffi
SKU:
573100A
Brand:
Caleffi
(9)
–
+
$59.89
each
ADD TO CART
Add to List
In Stock
Get 6 by
Tue, Jun 16
Total Available: 15
In Stock
Get 6 by
Tue, Jun 16
Total Available: 15
Add to List
88005793 Compare Checkbox
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B911, 1/2" Bronze Combination Fill Valve and Backflow Preventer (ProPress x NPT)
SKU:
88005793
Watts
SKU:
88005793
Brand:
Watts
–
+
$321.34
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Jul 15 - Wed, Aug 12
Backorder
Get it by
Wed, Jul 15 - Wed, Aug 12
Add to List
334-T3 Compare Checkbox
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Taco Dual Unit Valve (Threaded)
SKU:
334-T3
Taco
SKU:
334-T3
Brand:
Taco
(6)
–
+
$178.82
each
ADD TO CART
Add to List
In Stock
Get 18 by
Wed, Jun 17
In Stock
Get 18 by
Wed, Jun 17
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3450-001RP Compare Checkbox
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Backflow Preventer Cartridge
SKU:
3450-001RP
Taco
SKU:
3450-001RP
Brand:
Taco
–
+
$88.58
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Jul 15 - Wed, Aug 12
Backorder
Get it by
Wed, Jul 15 - Wed, Aug 12
Add to List
3450-003RP Compare Checkbox
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Backflow Preventer Wrench
SKU:
3450-003RP
Taco
SKU:
3450-003RP
Brand:
Taco
–
+
$12.46
each
ADD TO CART
Add to List
In Stock
Get 1 by
Wed, Jun 17
Total Available: 6
In Stock
Get 1 by
Wed, Jun 17
Total Available: 6
Add to List
334-H3 Compare Checkbox
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1/2" Cast Iron Pressure Reducing Dual Unit Valve (Press)
SKU:
334-H3
Taco
SKU:
334-H3
Brand:
Taco
–
+
$194.74
each
ADD TO CART
Add to List
In Stock
Get 1 by
Fri, Jun 19 - Mon, Jun 22
In Stock
Get 1 by
Fri, Jun 19 - Mon, Jun 22
Add to List
334-3 Compare Checkbox
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Taco Cast Iron Pressure Reducing Valve, Dual Control (Sweat)
SKU:
334-3
Taco
SKU:
334-3
Brand:
Taco
(4)
–
+
$183.29
each
ADD TO CART
Add to List
In Stock
Get 7 by
Wed, Jun 17
Total Available: 14
In Stock
Get 7 by
Wed, Jun 17
Total Available: 14
Add to List
Resources
FAQs, Manuals & Videos
Articles
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.
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