Our natural horticultural vinegar contains 20% acetic acid. Standard shelf vinegar typically contains 5% acetic acid. This non-toxic treatment also contains yucca extract. The yucca extract in our horticultural vinegar acts as a natural surfactant, increasing the overall effectiveness of the product. This product provides many uses as an acidifying agent. The ready-to-use, concentrated formula requires no mixing or diluting. However, on hot days you may mix it 1 part vinegar to 1 part water when spraying weeds. This jug contains one gallon of horticultural vinegar. Please contact us for larger size (55 gallon drum). See links section below for additional product information.