11 Piece Powder Flask Spout Set, brass, 10-1mm thread to fit most common flasks - Track of the Wolf

Muzzle-loaders Brass Powder Flask Nozzle - 30 Grain Spout - MZ1400N : Sports & Outdoors

Muzzle-Loaders Brass Powder Flask, 100% Adjustable

Two Way Powder Flask by Twigg. very early & rare. SN 8981 – West Street Antiques

Search - Track of the Wolf

Muzzle-Loaders Brass Powder Flask, 100% Adjustable

Search - Track of the Wolf

Black Powder Flask Spout

Search - Track of the Wolf

Muzzle-Loaders Brass Powder Flask, 100% Adjustable

Deluxe Flask A1201 Traditions® Performance Firearms

Brass horn measure valve, pouring spout and small bushing - Track of the Wolf