Plastro Plasson Industries [India] Ltd manufactures Hydro PC Non-Drain Device. Plastro Plasson Industries [India] Ltd is an ISO 9001:2000 certified company. Hydro PC Non-Drain Device eliminates water draining from the dripline when water has been turned off. This feature protects driplines from sucking in of small soil particles or other debris - thus making it ideal for subsurface drip irrigation systems [S.D.L.] and short pulse irrigation in greenhouses. It maintains constant flow rate on long run driplines or on undulating terrain. It is applicable for sub-surface drip systems and for short intervals watering in greenhouses.