One is Sodium bisulfite Browning treament the other is hydrogen peroxide Urine treatment!
You could buy Coffee stain remover from master blend it come in a 2 lb jar for around $20.00 and mixes into several gallons of rtu product for browning stains coffee and Urine to
it just smells bad with the right prespary it will even remove red stain with an iron!
but like either product only use on synthetics not wool! I personally like cti urine stain remover, it just burns and bleaches your fingers a little. <Temporary . You have to warn your customer that its
on the floor and keep pets away or they may get a free bleaching on thier paws!
Red1 is better for red stains just saying in a pinch use what You got!