HTH spa™ Test Strips

Hot Tub Test Strips for Chlorine and pH

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HTH spa™ Test Strips

Hot Tub Test Strips for Chlorine and pH

HTH™ Spa Test Strips make it simple to maintain clean, balanced, and healthy spa or hot tub water.

  • These reliable spa test strips quickly measure five essential elements—total bromine, free chlorine, pH, alkalinity, and total hardness—giving you accurate results in seconds.
  • Designed for convenience and confidence, they help you keep water crystal clear and properly balanced for a safe, comfortable soak.
  • Compatible with all spa types and sanitizers.

HTH™ Spa Test Strips deliver professional-grade testing made easy.

Product Benefits

Compatible with most spas

HTH spa™ Test Strips are great for bromine and chlorine systems.

You’re all clear with HTH™

For best results, use HTH spa™ Test Strips twice a week to test and balance your spa water.

How to Use

Product Overview

HTH Spa Test Strips make it easy to monitor spa and hot tub water in seconds. Designed for quick, accurate testing, these strips help you maintain comfortable, balanced water by checking key sanitizer and balance levels twice a week.

Each bottle contains 25 strips for routine spa care.

What This Tests

  • Total Bromine or Free Chlorine
  • Total Alkalinity
  • pH
  • Total Hardness

What This Tests

  • Total Bromine or Free Chlorine
  • Total Alkalinity
  • pH
  • Total Hardness

Ideal Spa Water Ranges

  • Free Chlorine: 3–5 ppm
  • Bromine: 2–6 ppm
  • Total Alkalinity: 80–120 ppm
  • pH: 7.2–7.6
  • Total Hardness: 250–450 ppm

Helpful Tips

  • Test spa water at least twice a week.
  • Always read results immediately for best accuracy.
  • Avoid touching test pads with wet fingers.
  • Store strips indoors and away from heat or sunlight.

Safety, Storage, and Disposal

Storage & Care

Close the bottle tightly after each use.

Store in a cool, dry location away from heat, humidity, and direct sunlight.

Discard strips if they become damp or discolored.

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