Lavender toilet block Every rimblock last for 250 flushes, leaving your toilet with a long lasting fresh scent of lavender. Marcel\'s Green Soap Toilet Block Lavender & Rosemary is part of the range of septic tank friendly Marcel\'s Green Soap toilet cleaner. Give your loo some love with Marcel\'s 100% natural toilet cleaner products. Created from vegetable soaps and natural oils, clean with a conscious with their liquid toilet cleaner or add an eco toilet block for longer lasting fragrance. Explore the full range of Marcel\'s Green Soaps products, including natural shower gel and eco-friendly hand soap refill products, available from Big Green Smile.