Hot Tub Chemicals Direct is the pioneer of jacuzzi hot tub chemicals in the UK with a wide variety of inexpensive best-selling fragrances and aromatherapy crystals. No matter what hot tubs you use, our hot tub essentials boost the performance and effectiveness of your hot tubs without harming the build materials and your skin. Our hot tub spa chemicals are perfect for sensitive skin and ensure the cleanest soaking experience you may have with your family or friends.