Polylok 24" x 6" Septic Tank Riser

Key Features and Benefits

• Stackable Design — Easily stack multiple risers (including 6" and 12" heights in the 24" series) to achieve the exact height needed to reach grade—no custom cutting required.
• Secure Locking System — Risers snap/lock into place and are fastened with included screws for a stable, reliable connection.
• Watertight and Airtight Performance — When properly sealed (recommend using butyl sealant tape between sections, as factory gaskets are no longer included), prevents groundwater infiltration and allows for effective vacuum or water testing of the septic tank.
• Superior Strength — Features heavy-duty structural reinforcements and internal ribs that add rigidity, resist deformation, and prevent frost adhesion in cold climates.
• UV Protection — Highest UV-ray resistance available to prevent fading, cracking, or brittleness from sun exposure over time.
• Lightweight Yet Tough — Easier to handle and install than concrete alternatives, while capable of supporting loads like lawn mowers or small garden tractors (when properly installed and backfilled).
• Made in the USA — Patented design (multiple U.S. patents) from Polylok, a trusted leader in onsite wastewater products.

Specifications

• Diameter: 24 inches
• Height: 6 inches
• Material: High-density polyethylene (HDPE)
• Color: Typically green (or black in some variants)
• Compatibility: Fits only Polylok 24" risers or Polylok adapter rings (e.g., #3009-AR square tank adapter or #3009-RTR24 round tank adapter ring). Not interchangeable with other brands without proper adapters.
• Included: Riser section + installation screws

Note: Measure the distance from your septic tank lid to finished grade to determine how many risers (and lids) you'll need. Combine with 12" tall sections for taller requirements.

Easy Installation

1. Install on a compatible Polylok adapter ring secured to the tank.
2. Stack and align risers, securing each connection with screws.
3. Apply butyl sealant rope/tape between sections for a reliable seal.
4. Top with a Polylok 24" riser lid (sold separately) for a complete, secure access point.

This riser accepts optional Polylok accessories like safety screens, heavy-duty lids, or anchor kits for added protection and stability.

Upgrade your septic system with the Polylok 24" x 6" Riser for faster, cleaner, and more cost-effective maintenance—say goodbye to shovels and guesswork during service calls!

Polylok 24" x 6" Septic Tank Riser Videos

The Polylok Riser Advantage

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Polylok Septic Tank Risers

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Polylok 24" x 6" Septic Tank Riser Downloadable Documents