# CTX CTX-200 / GR Closhock

**Brand:** Ctx
**Category:** Piscine & spa
**Code (GTIN/SKU):** 8420381710992
**Canonical URL:** https://openreviews.io/en/reviews/ctx/ctx-ctx-200-gr-closhock-8420381710992

## Rating: 5.0/5 ★★★★★ — 1 reviews analyzed
_Confidence: high_

## At a glance

CTX CTX-200 / GR Closhock reviews: 5.0/5 based on 1 analyzed review, updated September 7, 2026.

Praised: treatment effectiveness.

1 review analyzed, published on another site.
Other sites: 1 source, 1 review, average rating 5.0/5.
How we count reviews: https://openreviews.io/en/methodology

## AI summary

This pool shock treatment comes in the form of granular chlorine and is designed for the maintenance and rapid recovery of pool water. It stands out for its immediate effectiveness in clarifying and sanitizing the pool.

## Strengths

- **Treatment effectiveness** — This shock chlorine in granular form allows you to quickly purify and recover pool water.

## Frequently asked questions

- How quickly do the granules work?
- How do you dose this product for a shock treatment?
- Is this chlorine compatible with all types of liners?
- Do the granules dissolve quickly in water?

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_Source: OpenReviews — https://openreviews.io/en/reviews/ctx/ctx-ctx-200-gr-closhock-8420381710992_