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Top view of Rain Bird VB-MAX-H Maxi Jumbo rectangular valve box with green lift-off lid, black polypropylene body, and two locking hex bolts visible (installation-ready).

Rain Bird Maxi Jumbo Valve Box VB-MAX-H - 40.3 x 27.1 x 18 in

Brand: Rain Bird
Save 6%
$720.12
$680.09
SKU VB-MAX-H

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The Rain Bird VB-MAX-H Maxi Jumbo Valve Box protects large in-ground irrigation valves and multiple components while providing fast, contractor-friendly access for maintenance and service.

  • Extra-large rectangular enclosure: 40.3 in L × 27.1 in W × 18 in H provides ample room for multiple valves, manifolds, and accessories.
  • Multiple opening sizes: standard top opening 29.4" × 16.4" and bottom 35.1" × 21.9"; maximum top 34.4" × 21.1" and maximum bottom 40.4" × 27.1" for flexible piping layouts.
  • Durable polypropylene construction (black body) with a green lift-off lid designed to retain horizontal and vertical integrity under load and resist soil and moisture.
  • 18 pre-molded knockouts (various sizes) plus a bolt-hole knock-out; knockouts slide back into place to keep out dirt during backfill and speed pipe placement.
  • Includes two hex head locking bolts with washers and clips and a side shovel-access slot for quick, tool-assisted lid removal.
  • Wide flange base and corrugated sides minimize sinking and protect valves from compression and impact from turf maintenance equipment.

Built for turf, commercial, and large residential irrigation installations, the VB-MAX-H simplifies installation and long-term service while protecting buried components. Refer to the VB Series brochure for technical drawings, load guidance, and installation instructions.

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Frequently Asked Questions

What are the exact exterior dimensions of the VB-MAX-H?
Exterior dimensions are 40.3 in L × 27.1 in W × 18 in H; top and bottom opening sizes vary for piping access.
Does the VB-MAX-H include hardware and locks?
Yes — it ships with two hex head locking bolts, washers and clips to secure the lid during service.
What material is the valve box made from and is it durable?
The VB Series bodies are molded from durable polypropylene to resist soil, moisture and maintain structural integrity under load.
How do the pre-molded knockouts work for pipe placement?
There are 18 pre-molded knockouts in varying sizes; they slide back into place after pipe routing to keep out dirt during backfill.

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