The Water Technology CF Series Cartridge Pool Filter provides compact, efficient filtration for residential swimming pools, spas and suitable semi-commercial pool applications.

Featuring a UV-resistant filter tank and heavy-duty ring-lock lid, the CF Series is designed for straightforward maintenance and convenient access to the cartridge element.

Unlike traditional sand filters, cartridge filters do not require routine backwashing. Simply remove and clean the cartridge element as required, helping reduce water wastage during maintenance.

A screw-type air bleeder allows trapped air to be released from the filter tank, while the oil-filled pressure gauge makes it easy to monitor operating pressure.

Supplied complete with cartridge filter element, pressure gauge and union connections.

Performance

• Filtration area: 2.25m²
• Maximum flow rate: 92 litres per minute
• Maximum flow rate: 5,520 litres per hour (5.52m³/h)
• Maximum working pressure: 250kPa / 2.5 bar / 36 PSI
• Maximum water temperature: 40°C
• Suitable for residential swimming pools and spas
• Suitable for compatible semi-commercial applications

Actual filtration performance depends on pump flow, plumbing and operating conditions.

Specifications

• Brand: Water Technology
• Series: CF25
• Filter type: Cartridge pool filter
• Filtration area: 2.25m²
• Maximum flow rate: 92L/min
• Maximum flow rate: 5.52m³/h
• Inlet/outlet connections: 50mm
• Pipe compatibility: 40mm pipe
• Maximum working pressure: 250kPa / 2.5 bar / 36 PSI
• Maximum water temperature: 40°C
• Tank construction: UV-resistant
• Lid: Heavy-duty ring-lock
• Air release: Screw-type air bleeder
• Pressure gauge: Oil-filled
• Cartridge filter element: Included
• Union connections: Included
• 2 Year Manufacturer's Warranty on Filter Housing

Construction & Features

• Compact, lightweight construction
• UV-resistant filter tank suitable for outdoor pool installations
• Heavy-duty ring-lock lid for convenient cartridge access
• Removable and washable cartridge filter element
• Screw-type air bleeder for releasing trapped air
• Oil-filled pressure gauge for monitoring filter operation
• No routine backwashing required
• Union connections supplied
• Suitable for compatible swimming pool and spa filtration systems

Frequently Asked Questions

Does this filter come with the cartridge element?

Yes. The CF Series filter is supplied complete with its cartridge filter element, pressure gauge and union connections.

Does a cartridge filter need backwashing?

No. Unlike a sand filter, a cartridge filter does not require routine backwashing. The cartridge element is removed and cleaned when necessary.

What size pump can I use with this filter?

The filter has a maximum rated flow of 92 litres per minute (5.52m³/h). Your pump's actual operating flow must remain within the filter's rated capacity.

Can I use this filter for a spa pool?

Yes, provided the spa's water temperature does not exceed 40°C and the filtration system is compatible with the filter's pressure and flow ratings.

How do I know when the cartridge needs cleaning?

Monitor the pressure gauge and follow the manufacturer's cleaning guidance. A rise in operating pressure compared with the clean-cartridge reading can indicate that cleaning is required.

Need Help Choosing?

Not sure whether this cartridge filter is suitable for your swimming pool, spa or existing pump?

Contact us for straightforward advice.