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The NDS 312B is a 10-inch round valve box body designed for below-grade irrigation and utility valve installations. This unit is the body only, sold without a lid, making it a direct replacement or add-on component for existing valve box setups. Constructed for professional-grade field use, the 312B ships in green to blend with turf and landscaped areas. Irrigation contractors and landscape professionals install this box to house and protect in-line valves, solenoids, and related components from soil pressure and moisture intrusion. The part weighs 4.07 pounds and is sized for standard 10-inch round applications.
The 312B is used in residential and commercial irrigation systems where underground valve protection is required. It fits flush-mount installations in lawn, turf, and hardscape environments. This body is typically paired with a compatible 10-inch round lid to complete the assembly. Contractors working on drip systems, spray zones, or multi-zone irrigation manifolds use this valve box to maintain accessible, code-compliant valve placement at or below grade.
Designed as an OEM-style replacement or supplemental body for 10-inch round valve box systems used in standard residential and commercial irrigation applications.
Installation is typically performed by licensed irrigation contractors or landscape professionals. Shut off the irrigation system water supply before excavating and placing the valve box. The box should be set at a depth that allows the top rim to sit at or slightly below finished grade to prevent trip hazards and allow lid removal for service access. Always verify local codes for required burial depth and valve access requirements before installation.
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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