The Helix Max 2.0 UV Steriliser range is designed to improve water clarity and hygiene in freshwater and saltwater aquariums of varying sizes. Available in 5W, 9W, 11W, 18W and 36W versions, the range offers effective control of single-cell algae, helping to achieve crystal clear water while also reducing bacteria and water-borne parasites that can increase the risk of fish infections.

Each model uses controlled water flow and a large internal volume to maximise UV exposure. Water is directed along a spiral path around the quartz tube, allowing more efficient use of UV radiation compared to standard straight-flow UV sterilisers. This design improves overall performance while maintaining energy-efficient operation.

Installation is flexible and practical thanks to a 360° rotatable inlet fitting, allowing the unit to be mounted at almost any angle and supporting space-saving installations inside aquarium cabinets. Maintenance is simple, with easy disassembly providing access to the inner spiral for routine cleaning.

All Helix Max 2.0 units are equipped with high-frequency electronic ballasts suitable for both freshwater and saltwater use. These electronic ballasts help extend UV lamp lifespan and maintain consistent operating performance. An integrated viewing window allows simple and safe visual function checks, and hose nozzles are supplied for straightforward hose connection.

Key Features:

• Suitable for freshwater and saltwater aquariums
• Helps eliminate single-cell algae for clearer water
• Reduces bacteria and water-borne parasites
• Spiral water flow for improved UV radiation efficiency
• 360° rotatable inlet fitting for flexible, space-saving installation
• Integrated viewing window for safe function control
• High-frequency electronic ballast for improved lamp lifespan
• Supplied with hose nozzles for easy connection

The Helix Max 2.0 range provides a reliable UV solution for aquariums from small setups to large systems up to 2,000 litres, allowing aquarists to select the appropriate wattage to match their aquarium size and flow requirements.

Specifications:

• Available wattages: 5 W, 9 W, 11 W, 18 W, 36 W
• Freshwater aquarium capacity: up to 250–2,000 litres (model dependent)
• Saltwater aquarium capacity: up to 125–1,000 litres (model dependent)
• Recommended flow rate: 100–1,500 l/h (model dependent)
• UV output: 1.1–12 W UVC (model dependent)
• Lamp types: PL-S / PL-L (model dependent)
• Maximum pressure: 0.4 bar
• Maximum water column: 2 m
• Power connection: 220–240 V / 50–60 Hz
• Cable length: 3.5 m
• Housing dimensions: approx. 370–540 mm length x 90–110 mm diameter (model dependent)

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.