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You face rising costs and unreliable underground storage. Hebei Longxuan's underground fiberglass tanks deliver 30-year durability, OEM/ODM customization, and high-speed delivery—reducing your total ownership costs by up to 37%.
Ideal for purchasing managers seeking ROI-focused solutions in water, septic, and chemical storage.
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As a operations manager in the USA, you're dealing with high upfront prices from legacy steel tanks that corrode in 5-10 years.
Ready for a better option? Read on.
Our underground fiberglass tanks (FRP) from China's leading factory outperform steel by 50% in durability. Backed by ISO 9001 certification, we offer OEM/ODM design for custom underground fiberglass water tanks, septic, or fuel storage.
| Specification | Details |
|---|---|
| Material | FRP (Fiberglass Reinforced Plastic) |
| Capacity | 1,000 - 100,000 gallons |
| Wall Thickness | 8-25mm (customizable) |
| Pressure Rating | Up to 15 psi |
| Certifications | ISO 9001, NSF/ANSI 61, RoHS |
Applications: Septic systems, rainwater harvesting, chemical storage. Case: Texas utility saved 40% on installs with our 50,000-gal tanks.
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Custom from 1,000 to 100,000 gallons. OEM/ODM for your needs.
4-6 weeks via sea freight. High-speed supply chain beats competitors.
Yes, NSF/ANSI 61 certified for potable/septic. No groundwater risks.
T/T, L/C, PayPal. 30% deposit, balance pre-shipment.
10-year warranty, free install guides, 24/7 tech support.
Full OEM/ODM: Fittings, colors, reinforcements.

Free samples for first 10 inquiries. 100% money-back if not satisfied. USA delivery in 4 weeks.
Privacy policy: Your data is secure per GDPR/CCPA standards.
"Best quality underground fiberglass tanks—saved us $20K on installs!" – Mike R., CA Supply Chain Mgr.
⭐⭐⭐⭐⭐ Jan 2026
"Fast delivery from China, superior to local suppliers. Highly recommend for septic tanks." – Sarah L., FL Ops Director.
⭐⭐⭐⭐⭐ Feb 2026
"OEM design was perfect. No corrosion issues after 1 year underground." – David K., TX Purchasing Lead.
⭐⭐⭐⭐⭐ Mar 2026
"Quality assurance top-notch. Beats competitors on price and service." – Anna T., NY Tech Director.
⭐⭐⭐⭐⭐ Apr 2026
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
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