Ulteri Shower Head Washers Gaskets for Hand Held Hoses Or Shower Heads FREE: Flow Restrictor Made of high quality RUBBER. Provides a TIGHT SEAL to prevent leakage. Standard size 3/4 inch OD, 3/8 inch ID - FITS MOST SHOWER HOSES. Replacement part for shower hoses with hand held shower heads. Pack of 2 washers and FREE flow restrictor.