The RP-Galv Series has been tailor made by the well-known Water Tanks Australia. Made up of galvanized steel, these watertanks are rectangular in shape. The final sizing and dimensions of the tanks can be manipulated to fit into any nook or crevice of the house. The tank panels are externally bolted with high tensile 8.8 graded bolts and nuts. Internal bolting designs are also available. The sealing gaskets are high density PVC and the sealant is a high grade polymer, which is approved for storing potable water. So, these are best for even the tightest of the locations in your house.