Glass-fiber Reinforced Plastic (GRP) septic tanks are specialized equipment made from a synthetic resin matrix and glass fiber reinforcement materials, designed for the treatment of domestic wastewater. GRP septic tanks are actively promoted composite products by the state, featuring 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 fields such as chemicals, petrochemicals, construction, textiles, aviation, navigation, transportation, electricity, metallurgy, machinery, food, papermaking, and environmental protection.