Rubber Hose to Gas mask - 40 mm
The hose is 40mm thread (1,6 inches) which means that it fits the wide rage of GP-5, GP7, GPV, PMK, etc gas masks (and dedicated to them filters).
The length of the tube is between 50 - 55cm (19.5 - 21.5 inches).
New.Vintage.
Made in USSR
USSR Military old stock