The muc off nano gel refill concentrate 500ml pouch has arrived that39s right muc off39s relentless rampd team have made the already brilliant bike cleaner that much better re using is even better for the environment than recycling and that39s what makes the nano gel refill so great each nano gel refill pouch uses 89 less packaging than the equivalent 2 bottles of 1 litre muc off bike cleaner so don39t chuck out your old bike cleaner bottle save it and save the planet buy