If you want to use you X filter 1.0 either with the Marine Direct range of fleeces then this adaptor kit allows the CS3000 (https://charterhouse-aquatics.com/products/marine-direct-cs-3000-fleece) to be used on an X Filter 1.0 size. Easy to fit and fully test as compatible.
So if you are struggling to find X Filter fleece then this will get you up and running.