Cpc Air Hose Quick-Connect Male Connector Replacement Part for Sleepnumber Bed M-236 (for beds with 3/8" Inside Diameter Hoses only) Fits sleepnumber hoses that have a 3/8" inch inside diameter. Please measure your bed's hose inside diameter to determine if these are the correct size for your bed. Barbed for sure seal Works with many sleepnumber beds to replace broken connectors Replacement for M-236 Includes (1) Male Coupler with O-Ring