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What Does a Backflow Preventer Do?

30 January 2026

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1/4’’ THREE WAY GLOBE VALVE Brass (Lead Free) UL/FM - Valves
3 WAY GAUGE VALVE, UL, Bronze
Three Way Valve, UL Listed Manufacturer: Ningbo Huacheng Valve Company Ltd Material: Cast Brass Body Valve Type:  Bronze 3-way valve    Max Pressure: 300psi Connection: FNPT X FNPT X FNPT Size: 1/4"  UL Listed
$6.63
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3/4" BLACK MALLEABLE IRON SERVICE TEE, UL/FM Listed
3/4" BLACK MALLEABLE IRON SERVICE TEE, UL/FM Listed
Manufacture: MECH American Standard: Class 150 Material: The chemical composition of the cupola malleable iron used to create this fitting meet the mechanical property requirements (ASTM A197/A197M) Standards: Used for water or gas supply as well as for sewage and wastewater applications (ASME B16.3),...
$3.34
$3.34
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45° BLACK MALLEABLE IRON ELBOW, UL/FM Listed - NASCO Supply LLC
45° BLACK MALLEABLE IRON ELBOW, UL/FM Listed
Manufacture: MECH American Standard: Class 150 Material: The chemical composition of the cupola malleable iron used to create this fitting meet the mechanical property requirements (ASTM A197/A197M) Standards: Used for water or gas supply as well as for sewage and wastewater applications (ASME B16.3),...
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45° BLACK MALLEABLE IRON EQUAL STREET ELBOW, UL/FM Listed - NASCO Supply LLC
45° BLACK MALLEABLE IRON EQUAL STREET ELBOW, UL/FM Listed
Manufacture: MECH American Standard: Class 150 Material: The chemical composition of the cupola malleable iron used to create this fitting meet the mechanical property requirements (ASTM A197/A197M) Standards: Used for water or gas supply as well as for sewage and wastewater applications (ASME B16.3),...
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What Does a Backflow Preventer Do?

featured What Does a Backflow Preventer Do?

What Does a Backflow Preventer Do?  If you’ve ever wondered why cities require a backflow preventer in your plumbing system—or what one even looks like—you’re not alone. In this article,...

On by Tony Bagladi 0 Comments

Pipe Hangers, Supports & Bracing

Choosing the Right Pipe Hangers, Supports and Bracing

Learn how pipe hangers, supports, and seismic bracing keep fire sprinkler and mechanical systems safe, stable, and code-compliant. Discover installation tips, common mistakes to avoid, and why professionals trust Nasco...

On by Tony Bagladi 0 Comments

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