www.PWMall.com. PWMall-2103240-GP Hose Reel Swivel 3/4" M x 3/8" F 4,000PSI (Models D30004 & D30006)
Genuine Super Swivel ½ inch MXF Heavy Duty Hose Reel Swivel. Replacement Swivel for Home and Industrial Steel Hose Reel 9SS8MP50XFP50-Ni-AL #5124 - Amazon.com
Primefit HRPART2 Swivel Hub with O Rings - Replacement part for Primefit HRRUB380503 Air Hose Reel - Amazon.com