HG eco unblocker is an extremely powerful unblocker, but safe for the drains*. As the product is ready for use, it does not need to be diluted, which means there is much less chance of splashing. *Not suitable for aluminium or zinc drains. HG eco unblocker is a sustainable unblocker. HG eco products are free from preservatives, phosphates, phosphonates, colourings and microplastics. Ingredients such as allergens, parabens and chlorine are also excluded from the HG eco range. In brief: HG eco products are sustainable products, but with the familiar HG performance and effectiveness!