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The Apollo Valves RPLF4A Series 1/2 in. Bronze SAE Backflow Preventer, model number 4ALF203A2F, provides reliable protection against backflow in plumbing systems. This unit is designed to prevent the reverse flow of contaminated water while ensuring a smooth water supply. It is suitable for both residential and commercial applications.
This backflow preventer offers maximum protection against back-pressure and back-siphonage, making it ideal for various plumbing scenarios.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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