A pair of class actions brought against two manufacturers and bulk retailer Costco Wholesale Corp. over claims “flushable wipes” aren’t so flushable were remanded back to the district court Tuesday by the U.S. Court of Appeals for the Second Circuit.

The appellate panel of Circuit Judges Guido Calabresi, Debra Ann Livingston and Raymond Lohier Jr. said the appeal by manufacturers Procter & Gamble and Kimberly-Clark, and Costco required more work by U.S. District Judge Jack Weinstein of the Eastern District of New York.