Fits: 12" dual wall corrugated pipe
Cover OD: 14.5"
Weight: 3.5 lbs
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Seal-R® Septic Covers by BrenLin
Heavy-Duty Covers for Reliable Fit, Durability, and Secure Access
Seal-R® Septic Covers are solid LDPE lids built for secure, ground-level access on dual-wall corrugated riser pipe. Made in the USA, each cover delivers a tight seal and dependable fastening for new and retrofit installations.
Seal-R® Septic Covers by BrenLin
Heavy-Duty Covers for Reliable Fit, Durability, and Secure Access
Built for Installers. Trusted by Distributors & Homeowners.
Septic access points face repeated service calls, outdoor exposure, and riser variability. Seal-R® Covers are built to keep fit consistent and performance dependable over time, helping reduce cracking and corner-break issues common with more brittle lids.
Available in a broad range of sizes, 12"–42" diameters
Accommodates riser variability and provides consistent fit across dual-wall corrugated riser pipe
Solid LDPE construction
Built to withstand demanding field conditions and outdoor exposure without the common failures seen in other covers.
Gasketed seal
Helps prevent groundwater entry and protects the riser opening from runoff and standing water.
Predrilled hole pattern
Supports repeatable fastening with less guesswork and fewer field adjustments.
Available Sizes & Full Specifications
Seal-R® Septic Covers are available in 12"–42" diameters to match common septic riser applications, including 36" and 42" options for large access points. Each cover is designed to fit the corresponding dual-wall corrugated riser pipe size, with a gasketed seal and predrilled hole pattern engineered for secure attachment. Used as a standalone cover or as part of a complete Seal-R® riser system, these standard diameters support residential, commercial, and specialty septic configurations.
Need help determining the right size?
Contact us to select the correct cover diameter based on riser dimensions, tank configuration, and installation requirements.
Add-Ons That Installers & Distributors Ask For
Seal-R® Septic Covers can be paired with add-ons that make installs cleaner and service access easier. Contact us to match these options to your job requirements and ordering needs.
Customized Lids
Available for all cover sizesBrenLin offers customized Seal-R® Covers to display your company name, logo, and contact information using precision CNC machining on the cover surface to support long-term service identification.
Insulation Kits
Available for 18", 24" & 30" coversAdd extra insulation where it matters. These kits attach directly to Seal-R® Covers and include CNC-cut polystyrene insulation sized to the lid, plus all components needed for fast and easy installation.
Testimonials
Backed by Customers
Testimonials
Backed by Customers
"Extremely happy with BrenLin Company's septic tank covers! They are well made and available in many sizes. The ability to customize them with our name and phone number is a game changer. Brady has been a dream to work with. Highly recommend!"
Don E Miller Septic service, BrenLin Customer - Google Review
Buying Options
Choose the purchasing path that fits your job and timeline.
FAQs
For Installers & Distributors
Yes. Covers include stainless steel lag screws and washers for fastening.
Yes. Seal-R® Covers are designed to fit dual-wall corrugated riser pipe in corresponding diameters (12"–42"). They’re used in both new and retrofit installations—match the cover size to the riser pipe diameter for proper fit.
Yes. Distributor and installer pricing is available, including pallet quantity price breaks. Contact us for current pricing
For Homeowners
Cover size corresponds to the riser pipe diameter. If you’re unsure, we can help you confirm sizing based on your riser dimensions and setup.
Covers are commonly replaced due to damage, aging components, or when adding/upgrading riser access for easier service.
Built to Perform. Installed with Confidence.
BrenLin designs and manufactures Seal-R® Septic Covers in the USA with a focus on durability, precise fit, and straightforward installation support—for installers and distributors in the field, and for property owners who need reliable access that performs over time.