SafeTbag LR Liferaft Load Test Water Bags are manufactured for load testing of davit launchable liferafts. They are made of strong PVC coated fabric and specially equipped with an automatic pressure relieve valve to prevent any damages. LR waterbags consist of two separate lobes each of which is capable of retaining water loads with variable tonnages. Generally, standard size water bags are held in stock and available for fast delivery. Upon customer request, customized water bags can also be manufactured in a short space of time.