PEX adapters with valves for Water Meters - FLOWS.COM
Apollo 3/4 in. Brass PEX-B Barb x 3/4 in. Female Copper Sweat Adapter APXFS3434 - The Home Depot
Matco-Norca - New Lead Free Brass Cold Expansion PEX Fittings
Amazon.com: Supply Giant FQNB1034-OM 1 Inch x 3/4 Inch Lead Free Adapters x MIP, Brass Construction, Compatible w/PEX Piping, Low-Cost Plumbing Connection, Durability & Reliability, Easy to Install, 1 x 3/4 :
Zurn Part # QQSFC45GX - Zurn 1 In. Swivel X 3/4 In. Barb Brass Pex Adapter - Pex Adapters - Home Depot Pro