Plant Raisers Ltd Thorpe Road , Howden , East Yorkshire DN14 7PB United Kingdom About Solutions services Companies Plant Raisers Ltd Services Grading Grading 0 Share Seedlings are precision sorted at a rate of up to 8500 per hour into three grades by our TTA Plug Sorter ECO with it's Vision Plus grading System and two cameras. This results in improved consistency and uniformity of finished plants. Most popular related searches seedling plug seedling Customer reviews No reviews were found for Grading. Be the first to review! Add your review Publish your review Great! review successfully added!