Thank you for viewing! GEX Dog Filter Water Dispenser Pure Crystal PETIT Gentle water flow reassures even timid dogs! Always clean and delicious water! #GEXPureCrystalPetit800mL I used it for about six months after purchasing it. I washed it frequently while using it, but there is some water stain and dirt. There are two replacement filters included, as one out of three has been used. Instruction manual included. Operation confirmed.