Fiberglass septic tanks are specialized equipment made from a synthetic resin matrix and reinforced with glass fiber materials, designed for the treatment of domestic wastewater. These tanks are actively promoted by the state as composite material products, offering advantages such as lightweight, high strength, excellent toughness, corrosion resistance, vibrant colors, and a glossy finish that achieves mirror-like effects.

Far surpassing similar products made of ceramics, hard plastics, and steel, they are widely used in industries such as chemicals, petroleum, construction, textiles, aviation, navigation, transportation, electricity, metallurgy, machinery, food, papermaking, and environmental protection.