Seal it
The Seal-R® Cover and the Seal-R® Ring
Septic System Demands, Met at Every Stage
Built for the people who install, supply, and rely on septic systems every day.
Family-owned. Made in the USA. Engineering trusted septic solutions since 1998.
Septic Components for New Systems and Retrofit Applications
Designed to simplify installation, reduce failure points, and support long-term performance in the field.
Why Choose Seal-R® by BrenLin
Because performance, fit, and safety matter long after installation.
BrenLin products are are polymer-based and engineered to solve real installation and access challenges with a focus on durability, longevity, and safety.
Heavy-duty construction that holds up.
Built to resist cracking, impact, and everyday wear in demanding conditions—while accounting for variability in tanks, sites, and environments.
Precision fit. Exact height. No guesswork.
Engineered to reduce unnecessary adjustments and eliminate stacked sections. Get the exact riser height you need in the field, every time. No precut sections. No hauling concrete pipe and lids.
Safety integrated by design.
Secondary safety protection is built into the system—not added as an afterthought—providing confidence from install to years-long lifespan.
Faster installs. Lower labor costs.
Designed to reduce installation time and simplify later access needs. Install in minutes using a polyurethane foam sealant—no heavy concrete sections required.
Customizable to your operation.
Customize lids with your company information while maintaining the performance and reliability of the Seal-R™ system.
When customers choose BrenLin, they’re choosing solutions built to last—job after job.
Testimonials
Backed by Customers
"We have been working with BrenLin for the past 4 years. They are the only company we trust to provide our septic covers. Great customer service and the products are the best we have seen out there in our line of work. Tom is always very helpful and willing to go the extra mile to make sure we have the inventory we need when we need it!"
Cindy T., BrenLin Customer - Google Review
Septic Access Resource Center
Clear answers. Better decisions. Fewer problems down the line.
BrenLin’s resources help installers, distributors, and homeowners make confident product and installation decisions from sizing and system design to safety and long-term performance.
Discover guidance on topics such as:
How to Choose the Right Septic Tank Cover Size
Practical guidance on measuring, fit, and selecting the right solution.
Understanding Septic Riser Systems
How risers, adapter rings, and covers work together in real installations.
Why Secondary Safety Covers Matter
When and why secondary protection is critical for safer access.
Preventing Groundwater Infiltration in Septic Systems
Design considerations that help reduce long-term moisture-related issues.
About BrenLin
Engineering trusted septic solutions since 1998.
BrenLin is a family-owned manufacturer focused on building durable, reliable septic components designed to perform over the long term. With in-house engineering and U.S.-based manufacturing, BrenLin maintains hands-on control over quality, consistency, and safety—and works closely with customers to support installation needs and product selection.
Have a question about fit, installation, or product selection?
Our team is here to help you find the right solution.