# Centralizer

> Centralizers clamped to a casing or screen string over a depth interval. from === to denotes a single centralizer. Positions are derived from spacing; the count is never stored.

> **Centralizer** = `object`

Centralizers clamped to a casing or screen string over a depth interval.
`from === to` denotes a single centralizer. Positions are derived from
`spacing`; the count is never stored.

## Properties

### description?

> `optional` **description?**: `string`

Free-text description.

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### diameter?

> `optional` **diameter?**: `number`

As-built outer diameter in millimeters.

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### from

> **from**: `number`

Start depth in meters from ground level.

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### spacing?

> `optional` **spacing?**: `number`

Spacing between consecutive centralizers in meters. May be omitted when unknown.

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### to

> **to**: `number`

End depth in meters from ground level.

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### type

> **type**: [`OpenVocab`](/core/api/type-aliases/OpenVocab)\<[`CentralizerType`](/core/api/type-aliases/CentralizerType)\>

Centralizer type. Recommended values: [CENTRALIZER\_TYPES](/core/api/variables/CENTRALIZER_TYPES).