Industrial Style Plug to Male NPT Fittings | Adapters to Winterize Blow out Backflow Preventer and Pressure Vacuum Breaker (PVB) for Sprinkler System (Solid Lead-Free Brass) - Walmart.com
Proline Series 1/2-in x 1/2-in Threaded Female Adapter Union Fitting in the Brass Fittings department at Lowes.com
Tri-Clamp x Female NPT Adapters | Sanitary Fittings [Buy Online]
Viega ProPress 3/4 in. Press x 1/2 in. MPT Zero-Lead Bronze Reducing Adapter 77433 - The Home Depot
FloPlast IPS Male Adapters (SDR IPS HDPE PIPE ONLY) — American GrazingLands Services LLC
LS Swap AC condenser adapter fittings - 2 #8 fittings - WARR Performance LLC