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M Series Valves (32)
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3/8" (3)
1/2" (14)
3/4" (16)
1" (10)
1-1/4" (3)
1-1/2" (5)
2" (4)
2-1/2" (1)
3" (1)
Used With
–
Series 3 (8)
Series 20 (10)
Series 21 (10)
Series 24 (14)
Series 30 (10)
Series 31 (10)
Series 44 (14)
Series 94 (30)
Series A200 (3)
MR212D Series (2)
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$70 to $80 (1)
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$300 to $400 (11)
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$800 to $900 (3)
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Heating Supplies & Parts
Maxitrol Gas Regulators
Maxitrol Selectra Gas Controls
Modulating Valves
Modulating Valves
61 items
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1" Modulator Valve
SKU:
M611-1
Maxitrol
SKU:
M611-1
Brand:
Maxitrol
(1)
–
+
$368.80
each
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Get 21 by
Tue, Oct 3
More Available
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Get 21 by
Tue, Oct 3
More Available
Inventory Details
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1/2" Modulator Valve
SKU:
M451-1-1/2
Maxitrol
SKU:
M451-1-1/2
Brand:
Maxitrol
–
+
$178.70
each
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Get it by
Wed, Dec 27 - Thu, Mar 21
Get it by
Wed, Dec 27 - Thu, Mar 21
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3/8" Modulator Valve
SKU:
M411-3/8
Maxitrol
SKU:
M411-3/8
Brand:
Maxitrol
–
+
$200.63
each
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Get 2 by
Tue, Oct 3
Get 2 by
Tue, Oct 3
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1/2" Modulator Valve
SKU:
M420B-1/2
Maxitrol
SKU:
M420B-1/2
Brand:
Maxitrol
–
+
$188.84
each
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Get 17 by
Thu, Oct 5
Get 17 by
Thu, Oct 5
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3/8" Modulator Valve for use with LPG (liquid propane gas)
SKU:
M420H-3/8
Maxitrol
SKU:
M420H-3/8
Brand:
Maxitrol
–
+
$177.79
each
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Get 2 by
Thu, Oct 5
Get 2 by
Thu, Oct 5
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1/2" Modulating Gas Valve
SKU:
M511-1/2
Maxitrol
SKU:
M511-1/2
Brand:
Maxitrol
–
+
$262.93
each
ADD TO CART
Add to List
Get 8 by
Wed, Oct 4
Get 8 by
Wed, Oct 4
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3/4" Modulating Gas Valve
SKU:
M511-3/4
Maxitrol
SKU:
M511-3/4
Brand:
Maxitrol
–
+
$239.97
each
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Get 11 by
Tue, Oct 3
Get 11 by
Tue, Oct 3
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1/2" Modulating Gas Valve w/ Vent Tap on Both Sides
SKU:
M511B-1/2
Maxitrol
SKU:
M511B-1/2
Brand:
Maxitrol
–
+
$259.18
each
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Add to List
Get it by
Wed, Dec 27 - Thu, Mar 21
Get it by
Wed, Dec 27 - Thu, Mar 21
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3/4" Modulating Gas Valve w/ Vent Tap on Both Sides
SKU:
M511B-3/4
Maxitrol
SKU:
M511B-3/4
Brand:
Maxitrol
–
+
$259.18
each
ADD TO CART
Add to List
Get 24 by
Wed, Oct 4
Get 24 by
Wed, Oct 4
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3/4" Modulating Gas Valve Right Side Outlet
SKU:
M511R-3/4
Maxitrol
SKU:
M511R-3/4
Brand:
Maxitrol
–
+
$249.83
each
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Get 26 by
Wed, Oct 4
Get 26 by
Wed, Oct 4
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1/2" Modulating Gas Valve w/ Covered Wire Terminal Connections
SKU:
M511W-1/2
Maxitrol
SKU:
M511W-1/2
Brand:
Maxitrol
–
+
$266.49
each
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Get it by
Wed, Dec 27 - Thu, Mar 21
Get it by
Wed, Dec 27 - Thu, Mar 21
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1/2" Modulating Gas Valve w/ Covered Wire Terminal Connections
SKU:
M411W-1/2
Maxitrol
SKU:
M411W-1/2
Brand:
Maxitrol
–
+
$166.06
each
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Add to List
Get it by
Wed, Dec 27 - Thu, Mar 21
Get it by
Wed, Dec 27 - Thu, Mar 21
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Compare
3/4" Modulating Gas Valve w/ Covered Wire Terminal Connections
SKU:
M511W-3/4
Maxitrol
SKU:
M511W-3/4
Brand:
Maxitrol
–
+
$271.05
each
ADD TO CART
Add to List
Get it by
Wed, Dec 27 - Thu, Mar 21
Get it by
Wed, Dec 27 - Thu, Mar 21
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Compare
1/2" Modulating Valve
SKU:
M520-1/2
Maxitrol
SKU:
M520-1/2
Brand:
Maxitrol
–
+
$266.49
each
ADD TO CART
Add to List
Get it by
Wed, Dec 27 - Thu, Mar 21
Get it by
Wed, Dec 27 - Thu, Mar 21
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Compare
3/4" Modulating Valve w/ By Pass Left
SKU:
M520-3/4
Maxitrol
SKU:
M520-3/4
Brand:
Maxitrol
–
+
$289.49
each
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Get 26 by
Wed, Oct 4
Get 26 by
Wed, Oct 4
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1/2" Modulating Valve w/ By Pass Left
SKU:
M520H-1/2
Maxitrol
SKU:
M520H-1/2
Brand:
Maxitrol
–
+
$300.92
each
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Add to List
Get it by
Wed, Dec 27 - Thu, Mar 21
Get it by
Wed, Dec 27 - Thu, Mar 21
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1/2" Modulating Valve Set-Low Fire
SKU:
M520B-1/2
Maxitrol
SKU:
M520B-1/2
Brand:
Maxitrol
–
+
$281.30
each
ADD TO CART
Add to List
Get it by
Wed, Dec 27 - Thu, Mar 21
Get it by
Wed, Dec 27 - Thu, Mar 21
Add to List
Compare
3/4" Modulating Valve Set-Low Fire
SKU:
M520B-3/4
Maxitrol
SKU:
M520B-3/4
Brand:
Maxitrol
–
+
$424.22
each
ADD TO CART
Add to List
Get 24 by
Wed, Oct 4
Get 24 by
Wed, Oct 4
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Compare
3/4" Modulating Valve for use with LPG (liquid propane gas)
SKU:
M520H-3/4
Maxitrol
SKU:
M520H-3/4
Brand:
Maxitrol
–
+
$286.13
each
ADD TO CART
Add to List
Get it by
Wed, Dec 27 - Thu, Mar 21
Get it by
Wed, Dec 27 - Thu, Mar 21
Add to List
Compare
3/4" Modulating Valve Right Side Outlet used w/ Series 94 & A200 Systems
SKU:
M520R-3/4
Maxitrol
SKU:
M520R-3/4
Brand:
Maxitrol
–
+
$266.49
each
ADD TO CART
Add to List
Get 7 by
Wed, Oct 4
Get 7 by
Wed, Oct 4
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Compare
3/4" Modulating Valve, HI-LO
SKU:
M551-3/4
Maxitrol
SKU:
M551-3/4
Brand:
Maxitrol
–
+
$307.14
each
ADD TO CART
Add to List
Get it by
Wed, Dec 27 - Thu, Mar 21
Get it by
Wed, Dec 27 - Thu, Mar 21
Add to List
Compare
3/4" Modulator Valve
SKU:
M611-3/4
Maxitrol
SKU:
M611-3/4
Brand:
Maxitrol
(1)
–
+
$408.67
each
ADD TO CART
Add to List
Get 10 by
Wed, Oct 4
Get 10 by
Wed, Oct 4
Add to List
Compare
1" Modulator Valve Both Sides Tapped Low Fired Adjustment
SKU:
M611B-1
Maxitrol
SKU:
M611B-1
Brand:
Maxitrol
–
+
$379.00
each
ADD TO CART
Add to List
Get 7 by
Tue, Oct 3
More Available
Inventory Details
Get 7 by
Tue, Oct 3
More Available
Inventory Details
Add to List
Compare
3/4" Modulator Gas Valve w/ Vent Tap Both Sides
SKU:
M611B-3/4
Maxitrol
SKU:
M611B-3/4
Brand:
Maxitrol
–
+
$392.24
each
ADD TO CART
Add to List
Get 4 by
Wed, Oct 4
Get 4 by
Wed, Oct 4
Add to List
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Filter & Sort
61 items
Reset
SORT
Top Sellers
Default
Price ▲
Price ▼
Product Availability
–
Show
In Stock Only
(37)
Category
–
M Series Valves (32)
MR Series Valves (29)
Size
–
3/8" (3)
1/2" (14)
3/4" (16)
1" (10)
1-1/4" (3)
1-1/2" (5)
2" (4)
2-1/2" (1)
3" (1)
Used With
–
Series 3 (8)
Series 20 (10)
Series 21 (10)
Series 24 (14)
Series 30 (10)
Series 31 (10)
Series 44 (14)
Series 94 (30)
Series A200 (3)
MR212D Series (2)
See More
Review Score
–
(4)
Price Range
–
$70 to $80 (1)
$100 to $200 (9)
$200 to $300 (17)
$300 to $400 (11)
$400 to $500 (5)
$800 to $900 (3)
$900 to $1000 (2)
$1000 to $1500 (10)
$1500 to $2000 (1)
$2000 to $2500 (1)
See More
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