This cold water tank lagging jacket is ideal for insulation of cold water tanks of all types. Technical Information: Ideal for insulation of cold water tanks of all types. Available in contract, deluxe or super snugg version. Exceeds requirements of Water Byelaw 30 and BS 7181: 1989. Special sizes available upon request. Made in Great Britain. Jackets manufactured to BS 7181:1989. Exceed requirements of Water Byelaw 30. 40mm, 60mm or 80mm nominal thickness glass wool infill available, kitemarked to BS 5803: Part l: 1985 and non-combustible to BS 476: Part 4: 1970. Resilient Polythene cover. Heavy duty fixings of tensile strength not less than 40N. Supplied compression packed in a roll form. Strong, resilient and flexible mat which is easy to handle and install.