**Sani-Marc Anti-Chlor Knock Out, 1L - 30-10110-11 — Discounter's Pool & Spa Warehouse Skip to content
All locations are closed for in-person shopping. We continue to offer CONTACTLESS STORE PICKUP at all of our locations, in order to serve your ongoing pool and spa needs.
All locations are Open! However, due to the recent COVID-19 Ontario retail lowdown measures, all locations will be following regional capacity guidelines. We continue to offer CONTACTLESS STORE PICKUP at all of our locations, in order to serve your ongoing pool and spa needs.

**Sani-Marc Anti-Chlor Knock Out, 1L - 30-10110-11

$39.99
SKU 10001143


If you wish to decrease the sanitizer residual rapidly, use Knock Out and take advantage of your pool immediately. Knock Out will not affect the colouring of vinyl, cement or fibreglass pools.

When you start your pool, at springtime or during the regular season, shock treatments are required and a waiting period is necessary until the residual value has dropped to the recommended levels of 1 to 3 ppm.

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