Summary: The Flush Adjustable Radius Elbow for 1.67-Inch OD Tubing is a 316 stainless pivoting elbow from Lavi Industries that joins two 1.67-inch OD (42.4 mm) tubes at a field-set angle on a smooth curve. Part number 47-731A/424 fits .080-inch wall tubing and measures 2.76 inches on each leg. The pivot sets anywhere from roughly 85 to 175 degrees, so it matches as-built angles in refurbishment work. It is offered in polished 316 stainless and satin 316 stainless. It has the same look as the fixed 731/424 Flush Radius Ell and keeps the grip continuous through the turn. The 732A/424 Flush Adjustable Elbow is the sharp-cornered version of the same idea. Ships from US inventory.
Key specs: SKU=47-731A/424 (47- prefix = 316SS-only specialty class; 731A = adjustable variant of 731 mechanism family, i.e., variable-angle version of 90° Flush Radius Elbow); Tubing OD=1.67" (42.4mm; European DIN/EN shipbuilding and architectural handrail standard); Materials / Finishes=2 finishes: 316-Grade Polished Stainless Steel, 316-Grade Satin Stainless Steel (316SS only at 1.67" OD across entire Flush Fittings PF)
Flush Adjustable Radius Elbow for 1.67-Inch OD Tubing
Set the angle in the field and keep the grip continuous: this adjustable radius elbow joins two 1.67" OD (42.4mm) tubes anywhere from roughly 85° to 175°, on a smooth curve rather than a sharp break. Refurbishment work against as-built geometry is its home turf. 316 stainless, polished or satin, .080" wall.

