Hi jay, Thanks for reaching out to us. Our VersiDrain is not intended to be used with a disposal and operates as a drain only. Please feel free to contact our customer service department directly at 1-800-775-0703, via e-mail at firstname.lastname@example.org or simply text us directly from our website kraususa.com with any additional questions. Happy to assist. Best regards, Mike Kraus USA
Hi Cindy, Thanks so much for your question, No, you do not use the drain assembly when mounting a garbage disposal. Simply mount it directly to the drain hole! Feel free to call us at 1-800-775-0703 or email us at email@example.com if you have any more questions!