Guardian 1/2 in. 316 Stainless Steel 1000 PSI F/F Uni-Body Thread Reduced Port Sanitary Mini Ball Valve Blow Out Proof Stem 06Q101N04012 - The Home Depot
2Lot Steel Ball Valve Stem fits 1-1/2 & 2" valves part Number 444 E83 | eBay
Amazon.com: Midline Valve 3UVGZ Ball Valve Stem Extension for 1/4 in, 3/8 in. and 1/2 in. for Water Shutoff in Hard to Reach Applications, Brass : Industrial & Scientific