The Wrekin SE1 Replacement UV Lamp (G436-LI) is a high-quality 21/25-watt UV-C germicidal bulb designed to maintain effective UV water disinfection across a range of domestic and commercial UV systems. Producing consistent ultraviolet output, this lamp helps neutralise bacteria, viruses, and other harmful microorganisms, ensuring safe, clean water throughout your supply.
This lamp forms part of our UV replacement parts range and is manufactured to meet the demands of continuous UV sterilisation systems.
⭐ Key Features & Benefits
Effective UV-C Water Sterilisation
21/25W UV output for reliable microbial inactivation
Helps maintain water safety and system compliance
Wide Compatibility
Fits the following UV systems:
Wrekin UV Systems
Wrekin SE1 Stainless Steel UV Systems
Watts UV Systems
Watts WUV6-230
Watts PWUVBULB6
Wonder UV Systems
W-360
E-360
C-360
HC-360
PC-6
F-6
FC-6
FS-6
ES-6
ET-6
May also fit other UV systems – always match using the bulb reference code.
Reliable, Long-Life Performance
Consistent UV output throughout its operational life
Designed for continuous use in UV water filtration systems
Simple Replacement
4-pin, single-ended configuration
Direct replacement — no modification required
🔧 Technical Specifications
Specification
Details
Lamp Type
UV-C Germicidal
Power Output
21 / 25 Watts
Base Type
4-Pin, Single-Ended
Lamp Code
G436-LI
Application
UV Water Disinfection
🔍 Important Installation Note
Please check the bulb code on your existing UV lamp before ordering. UV systems can look similar, but correct bulb matching is essential for safe and effective operation.
🏠 Ideal Applications
Domestic UV water filtration systems
Private water supplies
Commercial UV disinfection installations
Routine UV lamp replacement and maintenance
📦 Order Your Wrekin SE1 UV Replacement Lamp Today
Restore full UV sterilisation performance and protect your water supply with this trusted 21/25W UV replacement bulb, supplied with expert support from Wrekin Water.
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How to Find the Correct Replacement Bulb Code for Your UV Water Filter
SE1 Replacement UV Lamp from Wrekin Water - 21/25w- (G436-LI)
Regular price
£36.00
Inc. VAT
£30.00 Ex. VAT
Sale price
£36.00
Inc. VAT
£30.00 Ex. VAT
Regular price
Unit price/ per
SE1 Replacement UV Lamp from Wrekin Water - 21/25w- (G436-LI)
The Wrekin SE1 Replacement UV Lamp (G436-LI) is a high-quality 21/25-watt UV-C germicidal bulb designed to maintain effective UV water disinfection across a range of domestic and commercial UV systems. Producing consistent ultraviolet output, this lamp helps neutralise bacteria, viruses, and other harmful microorganisms, ensuring safe, clean water throughout your supply.
This lamp forms part of our UV replacement parts range and is manufactured to meet the demands of continuous UV sterilisation systems.
⭐ Key Features & Benefits
Effective UV-C Water Sterilisation
21/25W UV output for reliable microbial inactivation
Helps maintain water safety and system compliance
Wide Compatibility
Fits the following UV systems:
Wrekin UV Systems
Wrekin SE1 Stainless Steel UV Systems
Watts UV Systems
Watts WUV6-230
Watts PWUVBULB6
Wonder UV Systems
W-360
E-360
C-360
HC-360
PC-6
F-6
FC-6
FS-6
ES-6
ET-6
May also fit other UV systems – always match using the bulb reference code.
Reliable, Long-Life Performance
Consistent UV output throughout its operational life
Designed for continuous use in UV water filtration systems
Simple Replacement
4-pin, single-ended configuration
Direct replacement — no modification required
🔧 Technical Specifications
Specification
Details
Lamp Type
UV-C Germicidal
Power Output
21 / 25 Watts
Base Type
4-Pin, Single-Ended
Lamp Code
G436-LI
Application
UV Water Disinfection
🔍 Important Installation Note
Please check the bulb code on your existing UV lamp before ordering. UV systems can look similar, but correct bulb matching is essential for safe and effective operation.
🏠 Ideal Applications
Domestic UV water filtration systems
Private water supplies
Commercial UV disinfection installations
Routine UV lamp replacement and maintenance
📦 Order Your Wrekin SE1 UV Replacement Lamp Today
Restore full UV sterilisation performance and protect your water supply with this trusted 21/25W UV replacement bulb, supplied with expert support from Wrekin Water.
