Check the listing for details. SEACHEM ALKALINE BUFFER Raises pH 4 KG ( 8.8 LB ). Condition: New. Listed at 74.99 USD. SEACHEM ALKALINE BUFFER Listing is for ( 1 ) : SEACHEM ALKALINE BUFFER 4 KG ( 8.8 LB ) Alkaline Buffer™ Adjusts pH to 7.2—8.5 Designed for use in planted aquariums Increases alkalinity Contains no phosphate Alkaline Buffer™ is a non–phosphate buffer to raise pH and alkalinity (KH) and buffer with Acid Buffer™. These buffers are designed for the planted aquarium or for very hard water where phosphate buffers may pose an algae or cloudiness problem. Alkaline Buffer™ raises pH and buffers between 7.2 and 8.5. It is gentle, safe, and enhances the freshwater environment. PayPal—a service to make fast, easy, and secure payments for your purchases ! Please feel free to contact me for International and combined auction shipping rates or with any questions or concerns that you may have about my products. Thank you ! >>>>