For Series B3 Distribution and Multi-Use Boxes. When inspection port membrane is removed, lid accepts 12" riser system components (use a utility knife to remove the membrane.

Dimensions: 15" x 22" with optional 12" round opening

Engineered for durability and ease of installation, this heavy-duty cover ensures a secure, watertight seal for residential and commercial septic or drainage systems.

Features:

Exact Fit: Specifically molded to fit the 15" x 22" Tuf-Tite 9-hole distribution box (9HD2) and our Multi-Use Boxes.

Heavy-Duty Construction: Manufactured from chemical-resistant, UV-stabilized HDPE for long-term outdoor exposure.

Snap-In Design: Features a secure snap-in fit that remains stable without the immediate need for fasteners, though it includes pre-drilled holes for optional stainless steel screws.

High Visibility: The bright green finish allows for easy location during maintenance while blending into turf environments.

Structural Integrity: Molded with a ribbed underside to provide superior structural strength and weight-bearing capabilities.