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CSA Rating (BTU/HR) –
100,000 - 199,999 (1)
200,000 - 299,999 (10)
400,000 - 499,999 (3)
500,000 - 599,999 (3)
ASME Rating (BTU/HR) –
1,000,000 - 1,499,999 (11)
2,000,000 - 2,499,999 (6)
Pressure Set Point –
125 (2)
150 (18)
Thermostat Length –
2" (3)
3" (3)
4" (1)
5" (6)
6" (1)
7" (2)
8" (4)
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(7)
Price Range –
$10 to $15 (1)
$100 to $200 (3)
$200 to $300 (4)
$300 to $400 (7)
$400 to $500 (2)
$500 to $600 (2)
$600 to $700 (1)
$1000 to $1500 (1)
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Heating Supplies & Parts
Relief Valves
Temperature & Pressure Relief Valves
Watts 40L & 40XL T&P Relief Valves
Watts 40L & 40XL T&P Relief Valves
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$527.60 each
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$365.76 each
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$349.39 each
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$606.46 each
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$189.84 each
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$253.44 each
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$145.94 each
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$138.26 each
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$260.84 each
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$338.03 each
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$260.84 each
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$348.72 each
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$577.28 each
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$297.22 each
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$471.70 each
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$357.15 each
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$357.15 each
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$321.68 each
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$440.77 each
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$1,094.64 each
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$10.54 each
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.Filter & Sort
21 items
Reset
SORT
Top Sellers
Default
Price ▲
Price ▼
Product Availability –
Show In Stock Only (10)
Size –
3/4" (13)
1" (7)
CSA Rating (BTU/HR) –
100,000 - 199,999 (1)
200,000 - 299,999 (10)
400,000 - 499,999 (3)
500,000 - 599,999 (3)
ASME Rating (BTU/HR) –
1,000,000 - 1,499,999 (11)
2,000,000 - 2,499,999 (6)
Pressure Set Point –
125 (2)
150 (18)
Thermostat Length –
2" (3)
3" (3)
4" (1)
5" (6)
6" (1)
7" (2)
8" (4)
Review Score –
(7)
Price Range –
$10 to $15 (1)
$100 to $200 (3)
$200 to $300 (4)
$300 to $400 (7)
$400 to $500 (2)
$500 to $600 (2)
$600 to $700 (1)
$1000 to $1500 (1)