PRO4® Septic Chamber

PRO4® Septic Chambers are high-performance, gravelless infiltration solutions designed for septic systems. A next-generation leach field solution that deliver superior hydraulic performance, faster installation, and long-term durability, without the need for gravel.

Engineered to maximize storage volume and lateral infiltration surface, PRO4® chambers provide a reliable, cost-effective alternative to conventional stone-and-pipe systems, even in constrained or challenging site conditions.

Designed with professional contractors in mind, the complete PRO4® chamber range delivers the performance and flexibility needed to adapt to each sites.

Modular interlocking design with new and improve super clips.
The arch is built strong to support your crew during install.
Made from high-density polyethylene for exceptional resistance to corrosion, chemicals, and environmental degradation.
Easy to transport and handle on site, enabling faster installation with minimal equipment.
Molded-in access for simplified inspection, monitoring, and maintenance.
H-10 Load Rating

Technical documents

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Features and Benefit

Pro4®’s unique asymmetrical arches are engineered to withstand the demands of modern drainfield installations. Strong enough to walk on during installation, they help crews work faster while reducing labor and installation time.
Eliminates the need of aggregate, reducing excavation, material handling, and installation time.
New interlocking couplers provide secure connections while offering up to 10° of joint articulation in either direction, allowing the system to easily adapt to site contours.
Supports multiple gravity, front, side, and top inletting elevations “add something like in addition to Low Pressure pipe applications”

Guides and documents

Product Sheet

PRO4 Product Sheet

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VIDEO

Pro4® Septic Chambers Explained

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How to Install - PRO4® Onsite Septic Chamber

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A Complete Range of PRO4® Chambers

PRO4/36LP - Septic Chamber PRO4/36HC - Septic Chamber PRO4/36 - Septic Chamber PRO4/24 - Septic Chamber

PRO4/36LP – SEPTIC CHAMBER

The PRO4/36LP model provides a 9.4‑square‑foot open bottom area and a 32‑gallon storage capacity, purpose‑built for shallow excavation placement systems.

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PRO4/36HC – SEPTIC CHAMBER

The PRO4/36HC model provides a 9.8‑square‑foot open bottom area and a 65‑gallon storage capacity, delivering efficient infiltration and reliable performance for high‑capacity installations that benefit from increased storage volume and sidewall height.

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PRO4/36 – SEPTIC CHAMBER

The PRO4/36 model provides a 9.8‑square‑foot open bottom area and a 51‑gallon storage capacity, delivering efficient infiltration and reliable performance for demanding site conditions.

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PRO4/24- SEPTIC CHAMBER

The PRO4/24 model provides a 6.4‑square‑foot open bottom area and a 32‑gallon storage capacity, designed for installations where regulations or specific designs require 2‑foot‑wide trenches or 2-foot wide chambers.