50 litre tanks and chemicals

What's included: 7 tanks and lids (approx. 610mm x 420mm x 420mm), 2 heat mats (plugs not supplied), 25 litres of Blackfast 181 (will make 100 litres of working solution), 10 litres of Blackfast 551 (will make 50 litres of working solution), 25 litres of Blackfast 716 (will make 50 litres of working solution), 15 litres of Blackfast 925 (will make 75 litres of working solution).