The Caleffi 573403A is a compact 1/2-inch NPT backflow preventer, crucial for protecting potable water supplies from contamination. Its dual-check valve design effectively prevents backpressure and backsiphonage. Constructed from dezincification-resistant brass, it ensures durability and long-term reliability. This assembly also features atmospheric ports for enhanced safety. With a maximum working pressure of 175 PSI and a temperature range of 32°F to 210°F, it's suitable for various residential and commercial plumbing applications.

For an efficient and reliable HVAC system, theCaleffi Backflow Preventer » is a great choice for optimal system performance.

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