Step 1 of the HTH® EXTRA 3-Step System

This Calcium Hypochlorite-based sanitizer provides 65% available chlorine and is designed to effectively control bacteria, algae and other contaminants. These are convenient and easy to use 275 g capsules that are for skimmer use only.

Compatible with chlorine, ozone and mineral systems.

Available Sizes: 1.8 kg, 10 kg and 18 kg

These Calcium Hypochlorite tablets provide 65% available chlorine and are for use in floaters or skimmers.

Available Sizes: 2.27 kg, 10 kg and 25 kg

This Calcium Hypochlorite sanitizer provides 70% available chlorine. It is a quick dissolving granular product.

Compatible with chlorine, ozone and mineral systems.

Available Sizes: 10 kg, 16 kg and 30 kg

Step 1 of the HTH® EXTRA 3-Step System

Slow-dissolving, 200 gram pucks offer 90% available chlorine for effective sanitizing. Use these tablets for continuous disinfection of swimming pool water. The pucks are also sun protected to extend chlorine in the pool. For use in floaters, skimmers, feeders or automatic chlorinators.

Compatible with chlorine, ozone and mineral systems.

Available Sizes: 6 kg, 8 kg and 10 kg

HTH® EXTRA Multi-Purpose Chlorinating Pucks is a multi-purpose product that sanitizes, clarifies, prevents algae and destroys other organic contaminants in your pool. This convenient and fast-acting formula can be used on all pool surfaces, is sun protected and provides a steady source of available chlorine.

Compatible with chlorine, ozone and mineral systems.

Available Size: 6 kg

This soluble, granular product shock treats and controls black, green and yellow algae.

Available Size: 1 kg

Step 2 of the HTH® EXTRA 3-Step System

This quick dissolving Calcium Hypochlorite shock provides 75% available chlorine.

Compatible with chlorine, ozone, mineral systems and salt water pools.

Available Sizes: 454 g, 6 kg and 15 kg

With 65% available chlorine, HTH® Sock It® shock treatment controls bacteria and algae in swimming pools.

Available Sizes: 0.454 kg, 2.27 kg and 8 kg

Step 3 of the HTH® EXTRA 3-Step System

This 60% polymer algaecide is ideal for controlling algae. Not only does this non-foaming formula treat algae but it also helps protect against future algae growth. There is no pH adjustment required before use, it is suitable for all pool types and is ideal for winterizing.

Compatible with chlorine, bromine, ozone, mineral systems and salt water pools.

Available Size: 1 L

This non-foaming liquid algaecide protects against algae growth in swimming pools. 

Available Size: 3.6 L

Step 3 of the HTH® EXTRA 3-Step System

HTH® EXTRA Algimycin® algaecide removes, prevents and controls green, blue-green and yellow algae. A special wetting agent penetrates and treats even deeply-rooted algae cells. This is a nonmetallic, poly-complex formula, which if used weekly, will prevent algae outbreaks in the pool. This product is compatible with all pool types and is ideal for winterizing.

Compatible with chlorine, bromine, ozone, mineral systems and salt water pools.

Available Size: 1 L

Available Size: 50 strips/bottle