Stubborn algae can be caused by low chlorine levels, poor water circulation or very warm weather. With up to 3 months of protection, HTH Algae Guard + Ultra is the strongest algae control formula from HTH, the brand swimming pool owners have trusted for over 90 years. The non-foaming, non-staining and fast-acting formula both kills and prevents extreme amounts of stubborn green, black and mustard algae for a season of crystal clear pool water. Simply add directly to your swimming pool water and dive right back in! HTH Algae Guard +Ultra is compatible with all swimming pool types and works great with HTH Shock products. How to Use HTH Algae Guard + Ultra With the pump running, add 16 fl oz of HTH Algae Guard + Ultra directly to 10,000 gallons of swimming pool water. For best results, use HTH Algae Guard + Ultra every 3 months for a season of beautiful, crystal clear swimming pool water. About HTH Pool Care HTH Pool Care was developed with the pool owner in mind. We know that maintain...

hth Pool Algae Guard +Ultra

Get same-day delivery from stores you know and love.

hth Pool Algae Guard +Ultra

Get same-day delivery from stores you know and love.

Product details