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hth Spa™ offers algaecides that will kill and prevent green, black and yellow algae.
hth spa non-foaming algaecide
hth spa™ Non-Foaming Algaecide
The hth Spa™ Non-Foaming Algaecide is an effective, non-foaming algaecide that, when used regularly, will prevent and kill green algae in spas and hot tubs.        
  • Raises pH
  • Allows sanitizer to work more effectively
  • Contains mineral crystals for a relaxing spa experience
  • Apply direct to spa
Don't know which products you need? Visit our water testing section.