25 Watt Stainless Steel UV Sterilizer with a 15mm inlet/outlet. It has the capacity to sterilize 1360 liters per hour.

The SDE-025 UV Sterilizer is a high-performance 25-watt stainless steel ultraviolet water sterilizer designed for whole-house or light commercial applications. It provides chemical-free disinfection by destroying 99.99% of harmful bacteria, viruses, and parasites without altering the taste or smell of your water.

Key Features:

• Sterilizes up to 1,360 litres per hour
• Durable stainless steel housing for long-term reliability
• 25W UV lamp delivers powerful disinfection
• Eco-friendly – no chemicals or additives
• Maintains the natural flavour and clarity of water
• Suitable for homes, guesthouses, small lodges, and water systems using tanks or boreholes

Dimensions:

• Complete unit: 600mm
• Bulb length: 550mm
• Quartz sleeve: 580mm

How Does Ultra Violet Light Work?

UV rays can destroy 99.99% of harmful micro-organisms without adding chemicals or changing your water’s taste or odour. UV light (254nm wavelength) effectively neutralizes bacteria, viruses, and parasites by damaging their DNA, stopping them from reproducing and causing infection.

Water flows through a specially designed stainless steel chamber, allowing direct contact with the UV light. In addition to destroying pathogens, the energy from UV rays breaks down organic compounds into safer molecules.

The effectiveness of UV sterilization depends on:

• The exposure time of micro-organisms to the UV rays

• Power stability of the UV lamp

• Clarity of water (filtered water is ideal)

• The size of the UV unit relative to flow rate

For optimal results, always pre-filter your water using a sediment filter before UV treatment.

Ultraviolet Sterilizer Use Information:

An ultraviolet sterilizer:

• Neutralizes bacteria such as E.coli and parasites like Cryptosporidium and Giardia
• Can be added to existing whole-house water filtration systems
• Is easy to install and maintain
• Is widely used in domestic, commercial, and light industrial setups
• Is essential after filtration in areas with contaminated water to protect against diseases such as Salmonella, Hepatitis, Typhoid, Polio, and Dysentery

Technical Specifications:

• Power consumption: 25 watts
• Maximum flow rate: 1,360 litres per hour
• Port size: 15 mm (½ inch BSP)
• UV wavelength: 254nm
• Material: Stainless steel chamber
• UV lamp replacement: Every 12 months

What You Get:

• 1 x Stainless Steel Housing (600mm in length)
• 1 x 25 Watt UV lamp (550mm in length)
• 1 x Quartz glass sleeve (580mm in length)
• 1 x Ballast (transformer) for 220V power supply
• 2 x O-rings
• 2 x Plastic mounting brackets (for wall or top mounting on Big Blue filter brackets)

This UV sterilizer is a reliable, low-maintenance, and environmentally safe way to protect your water supply—ideal for residential and small-scale commercial applications.

Parts and Consumables:

• 25W UV light Bulb (Replace every 12 months) 550mm in length
• 25W UV Ballast (Spare)
• 25W UV Glass Sleeve (Spare) 580mm in length

Disclaimer: Have your water tested before installing the uv light to ensure that it is the right solution and if any pre-treatment is required. It is important to have your water tested regularly after installation and to change the lamp at the recommended intervals to ensure the effective working of the unit.