Profile: Presby Plastics, Inc. develops and manufactures on site septic system products. We offer recycled plastics. Our Presby MazeAr is a non-electrical septic tank insert that pre-treats septic tank wastewater. It allows for the size reduction of leaching system and it is used residentially as well as commercially. Our Enviro-SepticAr is a versatile product that offers a great number of installation options, and can be used in many configurations & requires a smaller area than conventional leaching systems.