The ideal bulking agent for your Sun-Mar waterless toilet. Compost Sure Green is specially formulated to keep compost enriched with organic carbon, moist and maintain porosity ensuring maximum aeration. Bulking material contains a mix of coarse peat moss, and chopped agricultural biomass. Designed to maintain porosity and hold oxygen and moisture in the compost while keeping the compost well supplied with carbon. For self-contained and central waterless composting toilets.