Aqua-Grade provides a quick and easy alternative way of creating the perfect gradient for new pour solid floors. Colour coded modular sections click together to form any size of matrix - which you then simply fill with screed, reducing installation time by up to 50%. Available in centre drain and linear versions. Impey the best for your wetroom. There are many new companies out there that offer wetroom solutions, but Impey has been there from the beginning Impey are the leading wetroom specialist in the UK. Leading the way in shower floor former technology, Impey continue to offer the latest and greatest wetroom solutions.