Skip to content
Effective June 11, 2021, all our stores are open for walk-in shopping with capacity restrictions in place. We continue to offer CONTACTLESS STORE PICKUP at all of our locations. Home deliveries can be expected to arrive within 7-14 days. In-store pickup orders are typically prepared within 1-5 days.
Effective June 11, 2021, all our stores are open for walk-in shopping with capacity restrictions in place. We continue to offer CONTACTLESS STORE PICKUP at all locations. We are currently experiencing some delays.

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

Sold out
$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.

Customer Reviews

No reviews yet
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

Customer Reviews

No reviews yet
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)