Brass vs Plastic PEX Fittings? How about Stainless PEX Fittings Instead
Amazon.com: Uponor Wirsbo LF4701751 ProPEX LF Brass Reducing Tee, 1" PEX x 3/4" PEX x 1" PEX : Home & Kitchen
Brass Fittings
Copper vs. PEX and Push-Fit SharkBite Comparison
Brass PEX Fittings VS Plastic PEX Fittings, Which Should I Use? - Precision Homes & Design
Pro-tip: Thinking of using Pex-A? Avoid Sharkbite (brand) brass fittings (found at some Lowes). The tiny shoulders make it next to impossible to get a proper fit on 90's and Tee's. :