Apollo 3/4 in. Insert Blue Twister Polypropylene x 1/2 in. - 3/4 in. Dual Threaded 90 Degree Combination/Reducing Elbow Fitting ABTCE341234 - The Home Depot
Pneumatic Fitting | Mini Male Elbow M5 Thread Push In 4mm | R412005287 - TECO Technology
G 1/2'' x R 1/2'' F/M Stainless steel 90 deg Elbow Fitting 150 Bar | Tameson.com
3/8" MPT Elbow - 1/2" MPT or 3/4" Barb | The Bucket Company
Amazon.com: S SYDIEN 2Pcs 304 Stainless Steel 90 Degree Elbow 1/2" NPT Threaded Pipe Fitting Female x Male : Industrial & Scientific