FRP 1865 Filter Vessel – Extra High-Capacity Water Filtration Tank

Needs a 4″ control valve, riser pipe and strainers.
Max 10bar working pressure.
Media supplied separately.

The FRP 1865 Vessel with a 4” top opening is a heavy-duty fiberglass reinforced plastic (FRP) pressure tank designed for high-capacity water filtration and treatment systems. Measuring 18 inches in diameter and 65 inches in height, this vessel is ideal for industrial, commercial, and high-demand residential applications, offering large media capacity and high flow performance.

Constructed with a corrosion-resistant FRP outer shell and a food-grade polyethylene inner liner, the FRP 1865 vessel ensures long-lasting durability, safe potable water handling, and reliable pressure performance up to 10 bar. Its 4” top opening allows for larger control valves, easier media loading, and convenient maintenance, making it perfect for professional water filtration systems.

Key Features & Benefits

Heavy-duty FRP construction – rust-free and corrosion resistant
Food-grade inner liner – safe for drinking water applications
Extra-large media capacity – supports high water flow and usage
4” top opening – compatible with larger 4″ valves for easy installation and maintenance
Lightweight compared to steel tanks – easier transport and installation

Typical Applications

Industrial and commercial water filtration systems
Borehole and municipal water treatment
Carbon, glass, and multimedia filtration
Water softeners and iron removal systems
High-demand residential water filtration

Product Specifications

Model: FRP 1865
Size: 18” x 65”
Top Opening: 4”
Material: Fiberglass Reinforced Plastic (FRP)
Inner Liner: Food-grade polyethylene (PE)
Colour: Standard (may vary)
Valve Compatibility: Standard 4″ top-mount valves

Why Choose the FRP 1865 Vessel?

The FRP 1865 vessel with 4” opening offers high-capacity performance, durability, and professional-grade convenience. Its large media volume, corrosion-resistant construction, and compatibility with larger 4″ valves make it ideal for industrial, commercial, and high-demand residential water filtration systems

FRP 1865 Vessel with 4” Opening – Frequently Asked Questions (FAQ)

What is an FRP 1865 vessel with a 4” opening?

The FRP 1865 vessel with a 4” top opening is a fiberglass reinforced plastic (FRP) pressure tank used in water filtration and treatment systems. It measures 18 inches in diameter and 65 inches in height and features a 4” top opening for larger control valves, easy media loading, and convenient maintenance.

What is the FRP 1865 vessel with 4” opening used for?

This high-capacity vessel is ideal for:

Industrial and commercial water filtration systems
High-demand residential water treatment
Borehole water filtration
Carbon, glass, and multimedia filters
Water softeners and iron removal systems

Is the FRP 1865 vessel with 4” opening suitable for drinking water?

Yes. The vessel has a food-grade polyethylene inner liner, making it suitable for potable water applications when used with approved filtration media and correctly installed components.

What material is the FRP 1865 vessel made from?

The vessel features a fiberglass reinforced plastic (FRP) outer shell and a food-grade PE inner liner, providing durability, corrosion resistance, and long-term reliability.

Why is the 4” top opening important?

The 4” top opening allows:

Installation of larger control valves
Simplified media loading and replacement
Convenient access for inspection and maintenance
high flow rates

What control valves are compatible with this vessel?

The FRP 1865 vessel with a 4” opening is compatible with standard 4″ top-mount valves, suitable for industrial, commercial, and high-flow filtration systems.

Can the FRP 1865 vessel be installed outdoors?

Yes. It has a UV-resistant exterior, making it suitable for outdoor installation. For optimal lifespan, it is recommended to install the vessel in a shaded or sheltered area.

Will the FRP 1865 vessel rust or corrode?

No. FRP vessels are completely rust-free and corrosion resistant, ideal for water treatment environments exposed to moisture or harsh water conditions.

What maintenance does the FRP 1865 vessel require?

The vessel requires minimal maintenance. Routine care depends on the filtration media and control valve, such as periodic backwashing or media replacement.

Is the FRP 1865 vessel easy to install?

Yes. Despite its large size, the FRP 1865 vessel is lighter than steel tanks of similar capacity, making it easier to transport and install. Professional installation is recommended for optimal performance.

Does the FRP 1865 vessel come with filtration media and a control valve?

This depends on the selected product option. Check the product listing on www.pumpsandfilters.co.za or contact Pumps & Filters for guidance on selecting compatible media and control valves.