Keep your Davey UV water treatment system operating with the correct Genuine Davey UV Replacement Lamp.

This listing brings five genuine Davey lamp options into one convenient product. Simply select your Lamp Model from the dropdown and match it to the compatible UV system listed below.

Using the correct lamp is important because UV lamps are matched to specific systems. Always identify your existing lamp code or UV system model before ordering.

Lamp Options

Shopify Option Name: Lamp Model

Product Overview

These Genuine Davey UV Lamps are replacement lamps for compatible Davey and associated UV water treatment systems.

Rather than trying to match a lamp by appearance alone, use the lamp model and compatibility information to identify the correct replacement for your system.

Available lamp models include:

• EGPH840N/S
• EGPH550N2/W
• EGPH840N2/S
• EGPH369N/S
• MC-HOLP

The MC-HOLP option also includes an O-ring and key.

Why Choose a Genuine Davey UV Lamp?

Genuine Davey Replacement

These are genuine Davey replacement lamps, making them the appropriate choice when maintaining a compatible Davey UV system with the specified replacement part.

Model-Specific Compatibility

UV lamps are not universally interchangeable.

Each lamp in this listing has its own compatible system range, so selecting by the correct lamp code or UV system model helps prevent ordering an incompatible replacement.

Maintain Your Existing UV System

UV lamps are a service component within ultraviolet water treatment systems.

Replacing the correct lamp as part of routine system maintenance helps keep the UV system operating as intended.

Available Lamp Models

EGPH840N/S

Product Type: UV Lamp
Lamp Model: EGPH840N/S

Compatible With

• UV40-20
• UV75-25
• C1
• SF800
• SF900
• SF940

Choose EGPH840N/S when your existing system or lamp identification corresponds with one of these models.

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EGPH550N2/W

Product Type: UV Lamp
Lamp Model: EGPH550N2/W

Compatible With

• UV50
• UV70
• ASC50
• ASC70
• XL60

Choose EGPH550N2/W for the compatible UV systems listed above.

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EGPH840N2/S

Product Type: UV Lamp
Lamp Model: EGPH840N2/S

Compatible With

• UV130
• UV130-40
• UVS120
• C1H
• ESF1000
• ESF2500

Choose EGPH840N2/S when replacing the lamp in one of these compatible systems.

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EGPH369N/S

Product Type: UV Lamp
Lamp Model: EGPH369N/S

Compatible With

• Sterilight II
• Steriflo 300
• 369

Choose EGPH369N/S when your existing system corresponds with one of these models.

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MC-HOLP

Product Type: UV Lamp
Lamp Model: MC-HOLP
Additional Components: O-ring and key included

Compatible With

• MCS
• MCXS
• AQS-S
• KCMXS

The MC-HOLP differs from the other options in this listing because it is supplied with an O-ring and key.

Compatibility Guide

Choosing the Correct UV Lamp

Before ordering, check your existing UV system for its model number or current lamp code.

The safest way to select your replacement is to match either:

Existing lamp code → replacement lamp code

or:

UV system model → compatible lamp

Do not select a UV lamp based only on its physical appearance. Similar-looking UV lamps can be designed for different systems.

Installation

UV lamps are delicate components and should be handled carefully during replacement.

Before servicing your UV system:

1. Turn off the water supply where required.
2. Disconnect electrical power to the UV system.
3. Allow the existing lamp and system to cool before handling.
4. Remove the existing lamp carefully.
5. Install the correct replacement lamp for your system.
6. Reassemble the UV system correctly before restoring operation.

Avoid touching the glass portion of the new UV lamp with bare hands. Oils and residue from your skin can remain on the quartz surface of the lamp.

Always follow the servicing procedure applicable to your specific UV system.

Maintenance

UV lamps are consumable components and gradually lose useful UV output during operation.

Routine lamp replacement is therefore an important part of maintaining a UV water treatment system.

Your replacement schedule should follow the maintenance requirements of the particular UV system in which the lamp is installed.

What's Included

The contents depend on the selected model.

Frequently Asked Questions

Are these genuine Davey UV lamps?

Yes. This listing is for Genuine Davey UV Replacement Lamps.

Which lamp do I need?

Match your UV system model to the compatibility table:

EGPH840N/S: UV40-20, UV75-25, C1, SF800/900/940
EGPH550N2/W: UV50, UV70, ASC50, ASC70, XL60
EGPH840N2/S: UV130, UV130-40, UVS120, C1H, ESF1000/2500
EGPH369N/S: Sterilight II, Steriflo 300, 369
MC-HOLP: MCS, MCXS, AQS-S, KCMXS

Can I choose based on what my existing lamp looks like?

We recommend matching the lamp code or UV system model, rather than relying on appearance. UV lamps that look similar may have different specifications or compatibility.

Is MC-HOLP just a replacement lamp?

The MC-HOLP includes the UV lamp, O-ring and key.

Does every lamp include an O-ring and key?

No. The supplied compatibility information specifically identifies the MC-HOLP as including an O-ring and key. Those accessories should not be assumed to be included with the other lamp options.

Is EGPH840N/S compatible with the SF900?

Yes. EGPH840N/S is listed for SF800, SF900 and SF940, as well as UV40-20, UV75-25 and C1.

Which lamp fits UV50 and UV70?

Select EGPH550N2/W.

Which lamp fits UV130?

Select EGPH840N2/S. It is listed for UV130, UV130-40, UVS120, C1H and ESF1000/2500.

Which lamp fits Steriflo 300?

Select EGPH369N/S.

Which lamp fits MCS or MCXS?

Select MC-HOLP.

Should I touch the UV lamp glass during installation?

Avoid touching the lamp glass directly with bare hands. Handle the lamp carefully during installation and follow the servicing instructions for your particular UV system.