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Product Availability –
Show In Stock Only (11)
Size –
3/4" (11)
1" (8)
CSA Rating (BTU/HR) –
100,000 - 199,999 (1)
200,000 - 299,999 (7)
400,000 - 499,999 (2)
500,000 - 599,999 (5)
ASME Rating (BTU/HR) –
1,000,000 - 1,499,999 (8)
2,000,000 - 2,499,999 (5)
Pressure Set Point –
125 (2)
150 (16)
100 (1)
Thermostat Length –
2" (2)
3" (4)
4" (2)
5" (5)
6" (1)
7" (2)
8" (3)
Review Score –
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(6)
Price Range –
$10 to $15 (1)
$200 to $300 (1)
$300 to $400 (3)
$400 to $500 (4)
$500 to $600 (3)
$600 to $700 (3)
$700 to $800 (3)
$1000 to $1500 (1)
$1500 to $2000 (1)
Watts 40L & 40XL T&P Relief Valves
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$382.48 each
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$200.63 each
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$709.43 each
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 --%3E %3Csvg version='1.1' id='No-RB' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23CECECE' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
$14.16 each
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$710.51 each
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$478.90 each
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$636.65 each
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$360.89 each
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$594.29 each
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$519.54 each
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$381.20 each
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$401.07 each
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$1,461.75 each
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$443.04 each
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$772.27 each
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$651.62 each
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$600.64 each
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$1,541.58 each
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$546.11 each
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$407.96 each
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