Case (4) of one gallon of our TurFresh BioS+ Concentrate turf cleaning product, but without our Bio-Siphon Sprayer. Purchase to refill our 32 oz sprayer or use with a hudson pump sprayer or a garden sprayer. TurFresh BioS+ is the synthetic turf industry leader in odor treatment and odor prevention caused by pet urine and feces. TurFresh 1 gallon bottle is enough to treat up to 6,000 square feet of artificial turf surfaces. TurFresh cleaning system is used for outside turf applications and it smells amazing. No other turf cleaning products delivers the great smell along with the intense level of enzyme concentration to aggressively remove the nasty smell of urine. TurFresh formulated and manufactures our own product.