SharkBite 1/2-in Fip x 3/8-in Od Compression Brass Add-a-tee in the Shut-Off Valves department at Lowes.com
Benefits of Push-to-Connect Transition Fittings | SharkBite
The ROP Shop 1/2" x 1/2" x 1/2" Sharkbite Style Push to Connect Brass Tee Fitting, Lead Free - The Rop Shop
SharkBite 3/4 Inch x 3/4 Inch x 1/2 Inch Reducing Tee, Pack of 6, Push To Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U412LF - Faucet Parts And Attachments - Amazon.com
SharkBite 3/4 x 3/4 x1/2 In. Reducing Pipe Tee, Lead Free | Killingworth True Value
SharkBite 3/4-in x 3/4-in x 1/2-in Push-to-Connect Reducing Tee in the Push to Connect Fittings department at Lowes.com
SharkBite 1/2 Inch Crimp Tee, Brass Plumbing Fitting, PEX Pipe, PE-RT, UC362LFA - Pipe Fittings - Amazon.com