Kem-Tek KTK-50-0006 Pool and Spa 60-Percent Concentrated Algaecide, 1 Quart Description From the Manufacturer Kem-Tek 311-6 Algaecide 60% Concentrate is part of the Chem Lab easy 5 Step 5 Color DIY pool maintenance program. All Kem-Tek Pool Products and Spa-Kem Spa products provide contact information for a Live 24/7 Consumer help line as well as an online interactive water testing application. Features: Safe with all pool and filter types Helps clarify pool water Long lasting algaecide Non- foaming algaecide For treatment and prevention Product Details: Brand: Kem-Tek Item Weight: 2.1 Pounds Item Form: Liquid Product Dimensions: 9.5 x 3 x 3 inches Item Weight: 2.1 pounds Manufacturer: Kem-Tek Item model number: KTK-50-0006 Is Discontinued By Manufacturer: No