Carson Brooks 152 mm (6-inch) Round Valve Box

The Carson Brooks 708 round valve box creates a protected, accessible chamber around small irrigation components installed below ground. It keeps soil away from valves, fittings and cable joints while allowing inspection and maintenance from the surface.

Size and construction

• Model: Carson 708
• Nominal size: 152 mm (6-inch) round; nominal depth 229 mm (9-inch)
• Manufacturer drawing: approximately 156 mm top opening, 206 mm flared base and 222 mm cover diameter
• High-density polyethylene (HDPE) body with reinforced, flared sidewalls
• Two moulded pipe-entry areas
• For light-duty pedestrian or greenbelt locations only; not for vehicle-loading areas

Selection and installation

Choose the chamber from the working space required around the installed component, not from the lid diameter alone. Leave room for tools, cable bends and valve operation. Set the body on stable, compacted material, cut only the pipe entries required and finish the cover level with the surrounding surface. The load suitability depends on the complete body-and-cover combination.

This listing is for the valve box assembly shown. For an existing 708 body that only needs a new cover, see the matching Carson Brooks 708 replacement lid.

Manufacturer information: Carson 708 product page and official 708 dimension and specification drawing (PDF).