Zephrym PD3315 is a polymeric surfactant which is a variant of Atlox 4913 but with a more hydrophilic backbone. This improves its suitability for use as a dispersant for more polar compounds like micronutrients and copper fungicides. This product is also OMRI Listed for use as an inert ingredient in combination with permitted active pesticidal ingredients. An OMRI Listed certificate is available on request.