- Ditch3, our answer to the problem of single use plastic bottles in landfill and waterways! These fast-dissolving tablets create a highly effective, eco-friendly, fast-dry and non-toxic glass and window cleaner.Saves space and saves plastic - each refill pack replaces 3 single use plastic bottles.Each Starter Pack in this carton of 8 includes a 500mL cleaning bottle and a 3-tablet refill pack.