Semi-Square Fiberglass Tanks

A versatile shape that combines the space efficiency of rectangular tanks with smoother corners for better flow and easier maintenance.

Strong and Efficient Semi-Square Fiberglass Tanks

Our Semi-Square Fiberglass Tanks feature rounded or softened corners that help improve circulation, reduce debris buildup, and provide easier cleaning compared to sharp-edged rectangular tanks. Built with premium fiberglass and durable gel-coat finishes, they deliver long-lasting performance for water, aquaculture, and industrial applications.

Why Choose Our Semi-Square Fiberglass Tanks?

  • Better Flow & Easier Cleaning
    The semi-square design minimizes dead zones—ideal for filtration systems, aquaculture, and any application requiring clean water movement.
  • Space-Efficient Shape
    Maximizes usable space while maintaining a compact footprint. Suitable for indoor setups or facilities with layout limitations.
  • Lightweight, Durable, and Non-Corrosive
    Made from high-quality fiberglass with a gel-coat finish that resists water, chemicals, and long-term wear.
  • Fully Customizable
    You can choose the dimensions, fittings & drains, and color.
semi square-fiberglass tank

Looking for a reliable semi-square fiberglass tank?

Contact FRP Tank Solutions today or complete our form below to request custom specifications and pricing.

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All measurements shown are inside length x inside width