Drain Treatment: "EZ UL+" is ideal to block malodors in drains and has a fresh cherry scent. The product works much in the same way as in urinals. By floating above the waste and orgainics "EZ UL+" prevents odors from passing and leaving the drain. A light, fresh cherry scent is all that remains. "EZ UL+" is ideal for a variety of drains in summer/vacation homes, motor homes, and even drains in your basement that may accumulate stale or foul odors due to the lack of use. "EZ UL+" reduces maintenance time and costs and is environmentally friendly. Since "EZ UL+" is oil based it will not freeze above -70ºF and it wont evaporate at 100ºF.