ELKA Pure Bright 10Kg Laundry Powder Concentrate (Fresh Linen) Elka Pure Bright Laundry Powder Concentrate is a hard working laundry powder in concentrate form, so you use less in each wash, saving you money and helping the Earth. Suitable for use in front load washing machines and top loader models. No added phosphates Concentrated formula to save you money Use in cold, warm or hot water