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Apollo 4A105A2F 1-inch bronze double check backflow valve showing ball valve shutoffs and threaded testcock ports.

Conbraco 4A105A2F — 1-inch Double Check Backflow Valve

Brand: Conbraco Industries
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$443.72
$332.79
SKU 4A105A2F
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The Apollo® Model DC4A series Conbraco 4A105A2F 1-inch double check backflow prevention valve protects potable water from contamination caused by back-siphonage or backpressure. Durable bronze construction and serviceable top-access cartridges make this a contractor-ready choice for residential and commercial systems.

  • Bronze body: ASTM B584-C84400 bronze for corrosion resistance.
  • Performance: Rated to 175 psi and suitable from 33°F to 180°F.
  • Serviceable design: Top-access modular cartridges with captured springs, replaceable seats, and reversible silicone seat discs.
  • Isolation & testing: Ball valve shut-offs with stainless steel handles and nuts, SAE threaded testcock protectors for easy testing.
  • Certifications: NSF/ANSI 61 and NSF/ANSI 372 shown on product documentation where applicable.
  • Durability: Chloramine-resistant elastomers and a Made in USA assembly backed by a five-year Apollo factory warranty.

Connections are standard 1-inch female (FPT/NPT). See the included IOM and submittal sheet for detailed dimensions, installation instructions, and test requirements. Designed for horizontal and vertical-up installation; compatible with standard potable water systems.

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Frequently Asked Questions

What are the operating pressure and temperature limits?
Rated to 175 psi and suitable for 33°F to 180°F. See the submittal for application limits.
Is this valve certified for potable water use?
Designed for potable water applications and listed to NSF/ANSI 61. Check the submittal/IOM for lead-free designation for this SKU.
What connections and orientations are supported?
Standard 1-inch female (FPT/NPT) connections; approved for horizontal and vertical-up installations.
What maintenance features are included with this valve?
Top-access modular cartridges with captured springs, replaceable seats, reversible silicone discs, and testcock protectors for easy service.

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