★★★★★ 5
It fits perfectly.
Great replacement and a very good price.
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Reviewed in the United States on January 17, 2026
Watts Boiler Pressure Relief Valve, 2,055,000 BtuH, 75 psi - LF174A-75-1"
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Watts Boiler Pressure Relief Valve, 2,055,000 BtuH, 75 psi - LF174A-75-1"Boiler Pressure Relief Valve; Inlet Type: FNPT; Outlet Type: FNPT; Inlet Size: 1 in; Outlet Size: 1 in; Body Height: 5 3 4 in; BtuH: 2,055,000; Factory Set Pressure: 75 psi; Max. Temp.: 250 Degrees F; Auto Re Seating: No; Body Material: Lead Free Copper Silicon Alloy; Spring Material: Stainless Steel; Body Width: 3 in; Standards: ASME, MIL V 18634B
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4.1 ★★★★★
Based on 168 reviews
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Product Reviews
★★★★★ 5
Nice and a good price.
Fit our F250 Diesel well.
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Reviewed in the United States on November 10, 2025
★★★★★ 5
Great fitment
Nice fitment
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Reviewed in the United States on December 15, 2025
★★★★★ 2
F250 cabin filter change
Too thick. Air flow decreased significantly which is terrible in the AZ heat!
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Reviewed in the United States on July 27, 2025
★★★★★ 5
Clean filtered air
Installed easy. works great. Clean filtered air.
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Reviewed in the United States on July 21, 2025
