The Washer Single Dose Detergent Dispenser Is A Cup That Is Used For Dispensing Single Amounts Of Liquid Detergent During The Cleaning Cycle. It Allows Liquid Detergent To Remain In The Dispensing Drawer Until The Cycle Begins And Water Fills The Tub. This Is An Accessory That Can Be Used With Several Major Washer Brands; Check To See If Your Model Number Is Compatible. No Disassembly Or Repair Experience Is Needed To Use This Accessory. Helpful Tip: We Also Recommend Using Affresh® Washing Machine Cleaner* (Item W10501250) Once A Month To Help Reduce Odor-Causing Residue That Can Build Up In Your Washing Machine'S Drain Without Proper Care. *Affresh® Brand Products Are Owned And Distributed By Whirlpool Corporation.