3/4 720A Pressure Vacuum Breaker for Irrigation Solid Brass Max 400 PSI

- Reliable Performance: Backflow prevention valves play an important role in anti-siphoning in residential and commercial water distribution systems. Vacuum breakers protect the water supply by effectively preventing the backflow of unclean water back to the clean water source. - Pressure Response System：Vacuum breaker uses mechanical response to detect pressure changes; this backflow preventer activates atmospheric venting to disrupt vacuums and block reverse flow. The pressure vacuum breaker works without external power, sustaining steady operation of this back flow preventer valve. - Heavy-duty Valve Body & Cover:The anti-siphon valve has upgraded materials in all aspects. The thickened brass valve body and metal top cover are specially designed for corrosion resistance, pressure resistance and long-term outdoor use. - Better Sealing Materials: The 3/4" backflow prevention valve uses a high-sealing sealant, which is not only not easy to age, but also can maintain a good sealing effect even under high pressure, which is better than waterproof tape. WARNING: Loosening the valve connections will damage the PVB seal! - Perfect for Lawn & Garden Irrigation: Works as a sprinkler backflow preventer, irrigation backflow valve, pressure vacuum breaker, and anti-siphon valve for outdoor water systems. Great for lawns, gardens, landscape watering, commercial irrigation lines, and other non-potable water supply applications.

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