Description
The Canature FRP pressure vessel 21″ x 62″ – 4″ (344L) is a high-capacity fiberglass reinforced plastic (FRP) pressure vessel designed for demanding commercial and industrial water treatment applications. Manufactured with a high-strength fiberglass composite outer shell and a food-grade HDPE (polyethylene) inner liner, this vessel provides outstanding durability, corrosion resistance, and long service life in challenging operating environments.
Featuring a 4-inch top opening, the vessel is ideal for high-flow filtration systems and can be filled with a wide range of filtration media, including activated carbon, KDF, silica sand, gravel, ion exchange resins, activated glass media, DMI-65, Katalox Light, Calcite, and other specialty media. Its robust construction makes it an excellent choice for large-scale filtration, softening, and water treatment systems.
Features:
- Heavy-duty fiberglass reinforced plastic (FRP) construction.
- Large 4-inch top opening.
- Food-grade HDPE (polyethylene) inner liner.
- Non-corrosive and rust-proof construction.
- Suitable for commercial and industrial water treatment.
- Compatible with a wide variety of filtration and ion exchange media.
- High-strength composite construction.
- Designed for high-flow applications.
- Manufactured using advanced automated production technology.
- NSF and ACS certified materials.
- Low maintenance and long service life.
Specifications:
- Product: Canature FRP pressure vessel.
- Vessel size: 21″ x 62″.
- Top opening: 4″.
- Vessel capacity: 344 Litres.
- Recommended flow rate: 4,000 L/h.
- Inner liner: Food-grade HDPE (Polyethylene).
- Outer shell: Fiberglass reinforced plastic (FRP).
- Maximum operating pressure: 150 psi (10.5 bar).
- Maximum operating temperature: 120°F (49°C) threaded / 150°F (66°C) flanged.
Applications:
- Water softeners.
- Activated carbon filtration.
- Multimedia filtration.
- Activated glass media filtration.
- Sediment filtration.
- Iron removal systems.
- Manganese removal systems.
- pH correction systems.
- Reverse Osmosis pre-treatment.
- Borehole water treatment.
- Municipal water filtration.
- Commercial water treatment.
- Industrial process water.
- High-flow filtration systems.
Why choose the Canature FRP pressure vessel 21″ x 62″ – 4″ (344L)?
- High-capacity vessel designed for demanding commercial and industrial applications.
- Durable 100% composite fiberglass construction that will not rust or corrode.
- Large 4-inch opening allows easy media loading and compatibility with high-flow control valves.
- Food-grade HDPE liner suitable for potable water applications.
- Compatible with a wide range of filtration and ion exchange media.
- Manufactured using advanced automated production technology for consistent quality.
- NSF and ACS certified materials with KTW and W270 compliance.
- Lightweight yet exceptionally strong for easier installation and handling.
- Designed for long-term, reliable operation with minimal maintenance.
- Ideal for large-scale filtration and high-flow water treatment systems.
- Backed by a 1-year warranty for both residential and commercial installations.









