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Fibrelyte FL30D Valve Box Lid 13 x 23 in Drop-In Composite

Brand: Fibrelyte
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$142.62
$106.97
SKU FL30D

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Fibrelyte FL30D valve box lid is a drop-in composite cover sized for FL30T enclosures. Made from a proprietary mix of polyester resin, fiberglass and calcium carbonate, this lid delivers high strength while remaining much lighter than concrete, simplifying installation, service and transport.

  • Fits Fibrelyte FL30T valve box and compatible 13 in. x 24 in. rectangular housings.
  • Nominal lid opening: 13 in. x 23 in. for a secure, low-profile fit.
  • Approximately 20 lb weight per manufacturer catalog for easier handling compared with concrete lids.
  • Durable composite construction resists cracking and reduces long-term maintenance versus heavier materials.
  • Drop-in design allows quick replacement or service access without tools or hardware.

This lightweight, high-strength lid reduces jobsite effort and freight costs while providing reliable protection for irrigation valves and components. Consult manufacturer specifications or our support team for confirmation of fit and local code requirements.

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Frequently Asked Questions

What boxes does the Fibrelyte FL30D lid fit?
Designed to drop into Fibrelyte FL30T rectangular valve boxes (nominal 13 in. x 24 in.). Verify measurements before ordering.
How heavy is the FL30D valve box lid?
Manufacturer documentation lists the FL30D at approximately 20 lb, making it much lighter than comparable concrete lids.
What material is the FL30D lid made from?
A proprietary composite of polyester resin, fiberglass and calcium carbonate — offers high strength while reducing weight and handling effort.
Will this Fibrelyte lid require tools for installation or removal?
No — the FL30D features a drop-in design that allows quick removal and replacement without additional hardware or specialized tools.