Boiler Anodes

Up to 20% off for October! SHOP NOW TO BEAT THE PRICE RISE

Metal Guide

Al

Suitable for salt & fresh water

Mg

Suitable for fresh water

Zn

Suitable for salt water

Follow our colour coding for easy identification of metals.

Isotherm Boiler Anodes

On Sale!

Zinc
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Tecnoseal

AO1123-SP-37/MP

01450 - Isotherm Zinc Collar Anode For Boilers 39051

MSRP: £34.00

Was: £30.96

Now: £26.99
On Sale!

Zinc
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Tecnoseal

AO2235-AF-37

01451 - Tecnoseal Zinc Isotherm Boiler Pencil Anode

MSRP: £12.00

Was: £9.09

Now: £8.99

23rd Oct 2026

My Boat Anodes Are Not Corroding: Why a “Perfect” Anode May Not Be Working

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