Backflow Preventers

Irrigation backflow prevention devices are installed on your home's water lines to allow water to flow in one direction, but never in the opposite. It's sole job is to protect against both back-siphonage and back-pressure of contaminated water to the potable water supply. Backflow preventers provide protection from non-potable water contaminating potable water that would cause a health hazard.
Apollo - 4ALF-104-A2F - 3/4" 4A Series Double Check Valve Assembly
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$144.00
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Apollo - 4A-104-A2F - 3/4" DCA Backflow Preventer

3/4'' Non-Lead Free, Standard Y-Strainer w/ Ball Valves (Standard) & SAE Threaded Test Cocks The Apollo Model DC4A Double Check Valves prevent ...

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Apollo - 4A-105-A2F 1 in. DCA Backflow Preventer
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$188.82
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Apollo - 4A-105-A2F - 1'' DCA Backflow Preventer

1'' Non-Lead Free, Standard Y-Strainer w/ Ball Valves (Standard) & SAE Threaded Test Cocks The Apollo Model DC4A Double Check Valves prevent co...

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Apollo - 4A-107-A2F 1-1/2 in. DCA Backflow Preventer
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$335.48
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Apollo - 4A-107-A2F - 1 1/2'' DCA Backflow Preventer

1 1/2'' Non-Lead Free, Standard Y-Strainer w/ Ball Valves (Standard) & SAE Threaded Test Cocks The Apollo Model DC4A Double Check Valves preven...

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Apollo - 4A-108-A2F 2 in. DCA Backflow Preventer
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$379.98
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Apollo - 4A-108-A2F - 2'' DCA Backflow Preventer

2'' Non-Lead Free, Standard Y-Strainer w/ Ball Valves (Standard) & SAE Threaded Test Cocks The Apollo Model DC4A Double Check Valves prevent co...

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Apollo - 4A-205-A2F 1 in. RPZ Backflow Preventer
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$259.33
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Apollo - 4A-205-A2F - 1'' RPZ Backflow Preventer

1'' Non-Lead Free, Standard Y-strainer w/ Ball Valves & SAE Threaded Test Cocks (Standard 1/2'') The Apollo® Model RP4A/RPLF4A Series Reduced P...

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Apollo - 4A-207-A2F 1-1/2 in. RPZ Backflow Preventer
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$570.13
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Apollo - 4A-207-A2F - 1 1/2'' RPZ Backflow Preventer

1 1/2'' Non-Lead Free, Standard Y-strainer w/ Ball Valves & SAE Threaded Test Cocks (Standard 1/2'') The Apollo® Model RP4A/RPLF4A Series Reduc...

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Apollo - 4ALF-3A5-5A - 1'' Dual Check Valve Backflow Preventer
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$61.63
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Apollo - 4ALF-3A5-5A - 1'' Dual Check Valve Backflow Preventer

1 Lead Free FNPT (Female Pipe Thread Connection) Satin Brass Dual Check Valve DESCRIPTION The lead free* Apollo® Model DuCLF4A (4ALF-300) Dual Chec...

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Apollo - 4A-207-A2F 1-1/2 in. RPZ Backflow Preventer
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$598.13
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Apollo - 4A-208-A2F - 2'' RPZ Backflow Preventer

2'' Non-Lead Free, Standard Y-strainer w/ Ball Valves & SAE Threaded Test Cocks (Standard 1/2'') The Apollo® Model RP4A/RPLF4A Series Reduced P...

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