Plastic water tank; Roto-molded PE tank, strong & durable, low weight, cost effective, ... cost effective. With baffles pre-molded into the tank, makes this ideal for car valeters and window ... LLDPE (Linear Low Density Polyethylene) imported from South Korea, it is strong, durable and low weight. Water Tank ... " Screwdown Lid, which you can fit most submersable water pumps (14" or 16" lid for 1100 Litre ...