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As a purchasing manager, you face rising costs and frequent failures from metal tanks corroding underground. Our underground fiberglass tanks deliver 50-year durability without rust, slashing maintenance by 40%.
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You know the drill: buried tanks that leak after just 10-15 years due to corrosion, driving up replacement costs by 30-50% annually.
Our underground fiberglass tanks (FRP) from Hebei Longxuan Environmental Protection Equipment Co., Ltd. outperform steel with zero corrosion, lightweight design (40% easier install), and OEM/ODM customization.
| Specification | Details |
|---|---|
| Material | FRP (Vinyl Ester Resin) |
| Capacity | 1,000 - 100,000L (custom) |
| Wall Thickness | 8-20mm (structural design) |
| Burial Depth | Up to 10m |
| Certifications | UL 1316, ISO 9001, NSF/ANSI 61 |
| Weight | 30% lighter than steel |
Applications: Septic systems, fuel storage, chemical containment, water cisterns. Case: Texas oil firm reduced leaks by 100% post-install.
"Switched to Longxuan FRP tanks—37% cost reduction and zero leaks in 2 years." – Ops Manager, Texas Energy Corp.
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Ideal for septic, fuel, water, and chemical storage. Corrosion-free for buy underground fiberglass tank needs in harsh soils.
Yes, UL 1316 certified, meets EPA/STI regs for underground fiberglass tank manufacturer standards.
OEM/ODM for custom underground fiberglass tank, from 1,000L to 100,000L.
High-speed: 15-30 days via sea, FOB/CIF pricing. Track your underground fuel storage fiberglass tank.
50-year warranty, free tech support, on-site training available.
T/T, L/C, PayPal. Competitive ex-China pricing, 30% below US market.

Free samples for qualified buyers. 100% money-back if not satisfied within 90 days.
WhatsApp: +86 18631823130 | Email: longxuanfrp@gmail.com
Add: 20 Xingyuan South Street, Zaoqiang County, Hengshui City, Hebei, China | Privacy Policy
Mike R., Texas Ops Manager
"Best underground fiberglass septic tank we've used. Installed in days, no issues after 18 months. Saved 35% vs steel."
Sarah L., California Supply Chain Lead
"Custom FRP underground tank delivered fast. Quality beats China competitors—highly recommend for fuel storage."
David K., Florida Technical Director
"Corrosion-proof and lightweight. Underground fiberglass tank manufacturer with real OEM support. ROI in year 1."
Tom H., New York Purchasing Mgr
"Fixed our high-price/low-quality issues. Smooth logistics, top-notch service."
Customization can include size, material, structure, surface treatment, color, performance parameters, and packaging based on customer requirements.
Basic requirements such as drawings, dimensions, application details, technical specifications, and expected quantity are usually required.
Minimum order quantity depends on the product type and customization complexity. Please contact us for specific MOQ details.
Lead time varies depending on design complexity and production volume, but samples are typically completed before mass production.





Address
20 Xingyuan South Street, Zaoqiang County, Hengshui City, Hebei Province, China