The .375" or 3/8" diameter was actually .393" and was too large to fit into a standard 3/8" swivel nut or 6AN swivel nut to fit. Also, it's not galvanized tubing - it's magnetic, but the Chinese version of zinc is more akin to cadmium. because of their poor metrology and math skills, because the outside diameter minus two wall thicknesses is not equal to the inside diameter.
Dreame vacuum cleaner P10 PRO, white
19 Review
Power supply 12V, 40A, 500W (Hongwei HW-12V-500W)
12 Review
MI Motion Sensor YTC4041GL motion sensor
14 Review
CASIO Collection Men AQ-S800W-1B quartz watch, alarm clock, stopwatch, countdown timer, waterproof, power reserve indicator, hand illumination, display illumination, black
13 Review