Bato Plastics B.V. Munterij 2 , Zevenbergen , 4762 AH Netherlands About Solutions products Companies Bato Plastics B.V. Products Knee for Hydro Trough Knee for Hydro Trough From Horticultural- Substrate Troughs 0 Share The knee that fits on the Bato hydro trough, 2 knees need to be installed on the hydro trough to irrigate the water, so that the water is always fresh. Most popular related searches horticultural substrate horticulture horticulture water horticulture irrigation irrigation water water trough Customer reviews No reviews were found for Knee for Hydro Trough. Be the first to review! Add your review Publish your review Great! review successfully added!