GroundWork 5/8 in. Male Hose Adapter at Tractor Supply Co.
CerroBrass - Barbed Hose Fitting: 3/8″ x 5/8″ ID Hose, Male Connector - 48755573 - MSC Industrial Supply
Water Hose Barb, 5/8" x 3/4" GHT Male, Brass
Dixon Reusable Fitting 3/8 in. ID x 5/8 in. OD Hose x 1/4 in. Male NPTF - John M. Ellsworth Co. Inc.
Amazon.com : 3 Sets 5/8 Inch Brass Garden Hose Repair Kit Mender End Water Hose End Mender Female and Male Hose Connector with 6 Pieces Stainless Steel Clamp : Patio, Lawn & Garden
Orbit 5/8 in. - 3/4 in. Zinc Male Hose Mender 56687 - The Home Depot