Apollo 3/4 in. Brass PEX-B Barb x 3/4 in. Female Pipe Thread Adapter APXFA3434 - The Home Depot
AC WORKS 1.5ft NEMA 14-30P to NEMA 10-30R 30-Amp 4-wire To 3-wire Grounding Single To Single Black Basic Flexible Adapter in the Adapters & Splitters department at Lowes.com
Parker - Industrial Pipe Adapter: 1/2" Female Thread, 3/4-16 Male Thread, Male Straight Thread O-Ring x Female NPTF - 09107921 - MSC Industrial Supply
Adapter for Tripods 3/8'' to 1/4'' - 120 | Manfrotto US
LASCO 3/4-in Schedule 40 PVC Adapter in the PVC Pipe & Fittings department at Lowes.com
Amazon.com: Brass Adapter Nipple 3/4" Male x 1“ Female Pipe Fitting NPT Brass Adapter 3/4 inch x 1inch Female : Patio, Lawn & Garden
ANDERSON METALS - Industrial Pipe Adapter: 3/4-14 Female Thread, 3/4-14 Male Thread, MNPT x FNPT - 55540413 - MSC Industrial Supply