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What key do I need to bleed a radiator?

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A specialist radiator bleed key is recommended for bleeding radiators. You can usually find bleed keys at your local DIY or hardware store.

If you are unable to source a bleed key or have misplaced the one you own, a flat-blade screwdriver can usually be used as a substitute.

Read our guide on How to Bleed a Radiator for key tips on bleeding your radiators.