HTH spa™ Clear Chlorinating Sanitizer

Hot Tub Sanitizer for Bacteria and Algae

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HTH spa™ Clear Chlorinating Sanitizer

Hot Tub Sanitizer for Bacteria and Algae

HTH™ Spa Clear Chlorinating Sanitizer is your go-to solution for sparkling, balanced spa and hot tub water.

  • This powerful spa sanitizer doubles as a fast-acting shock treatment, destroying bacteria, algae, and organic contaminants for clear, comfortable water that’s ready when you are.
  • Its pH-balanced, residue-free formula keeps water clean and inviting while supporting overall spa health and equipment longevity.

Whether used for routine sanitizing or periodic shocks, HTH™ Spa Clear Chlorinating Sanitizer delivers dependable results every time. Because when it comes to your relaxation, HTH™ is here to help. 

Product Benefits

Creates more comfortable water

Our hot tub sanitizer protects water against chlorine loss for more comfortable water with no sediment.

Compatible with chlorine-based spas

HTH spa™ Clear Chlorinating Sanitizer is great for chlorine systems.

You’re all clear with HTH™

For best results, use HTH spa™ Clear Chlorinating Sanitizer as part of your regular HTH spa™ care routine.

How to Use

How to Use

This product is a fast-dissolving, stabilized chlorine designed to sanitize spa and hot tub water, control bacteria and algae, and keep water clear with no visible residue.

Before use, test spa water and ensure pH, total alkalinity, and hardness are within recommended ranges. Keep the circulation system running while adding this product.

How to Use

This product is a fast-dissolving, stabilized chlorine designed to sanitize spa and hot tub water, control bacteria and algae, and keep water clear with no visible residue.

Before use, test spa water and ensure pH, total alkalinity, and hardness are within recommended ranges. Keep the circulation system running while adding this product.

Routine Chlorination

For regular spa sanitation, scatter 0.4–0.6 ounces of this product per 500 gallons of water over the spa surface.

Test free available chlorine and add additional product as needed to maintain 3–5 ppm while the spa is in use.

Shock Treatment

After heavy spa use or when water quality declines, shock treat with 1.2 ounces of this product per 500 gallons of water.

This provides approximately 10 ppm available chlorine.

Do not enter the spa until free available chlorine levels return to 3–5 ppm.

Ingredients

Ingredients

Active Ingredient:

Sodium Dichloro-s-Triazinetrione dihydrate: 99%

Other Ingredients: 1%

Total: 100%

Safety, Storage, and Disposal

Safety, Storage & Label Guidance

Use this product only as directed. Avoid contact with eyes and skin and avoid breathing dust.

Wear protective eyewear and wash hands thoroughly after handling.

Do not mix with other chemicals or pre-dissolve before use.

Store in a cool, dry, well-ventilated area away from heat or open flame.

For complete safety precautions, first aid instructions, and disposal information, always refer to the product label.

Reviews

 

Quick Spa Tips

  • Always read product label directions and use only as directed

  • Always add chemicals to spa water, never the other way around

  • Never add chemicals to spa water when people are in the spa

  • Warning symbol with a triangle and exclamation mark on a blue background

    Never mix products together

  • Always store spa products in a cool, dry location and away from direct sunlight

  • Outline of a pair of gloves on a navy blue background

    Always wear proper safety equipment when handling chemicals