The ProPack 1 Gallon KRONEN RV TANK Treatment KHT003 is a premium holding tank treatment designed for RVs. This biological treatment comes in a 128 ounce jug and does not contain any deodorant or scent. Manufactured by PROPACK, this product is effective in maintaining the cleanliness and functionality of RV holding tanks. The packaging language is English, making it easy to understand and use for any RV owner looking to keep their tank in top condition.