Check the listing for details. Ortho GroundClear Weed & Grass Killer Super Concentrate Refill Pouches 10oz.. Condition: New. Listed at 5.99 USD. Get rid of unwanted weeds and grass with the Ortho GroundClear Weed & Grass Killer Super Concentrate Refill Pouches. This product is a powerful and effective solution for your weed control needs. It is a 10oz unit that can be mixed to your desired potency and is perfect for use in areas such as driveways, paths, and patios. The Ortho GroundClear Weed & Grass Killer Super Concentrate Refill Pouches are designed to kill even the toughest weeds and grass, including crabgrass, dandelions, and buttercups. It is a liquid form that can be easily poured without any mess or measuring. This product is made in the United States and is outdoor use only. With its ability to prevent weeds and grass for up to 3 months, you can have a weed-free yard all year round.