This tank has a spiral coil insert that cleans between bristles and a screw cap that prevents evaporation.
Silicoil Brush Cleaning Tank, Winsor & Newton
Silicoil Brush Cleaning Tank - 4 1/8D x 2 – Opus Art Supplies
Cheap Joe's 2 Minute Art Tips - Silicoil Brush Cleaning Tank
Silicoil Brush Cleaning Tank, Winsor & Newton
Silicoil Brush Cleaning Tank, Winsor & Newton
U.S. Art Supply 8 Piece Taklon Detail and Liner Artist
Silicoil Brush Cleaning Tank, Winsor & Newton
U.S. Art Supply 12 Hole Multi-Function Plastic Brush
Brush Cleaning Tank Jar – Odd Nodd Art Supply
Brush Cleaning & Accessories – Soho Art Supplies
Cheap Joe's 2 Minute Art Tips - Silicoil Brush Cleaning Tank
Lion Silicoil Brush Cleaning Tank - 12 oz jar
Brush Cleaning Tank, Hobby Lobby
Silicoil Brush Cleaning Tank Jar : Home & Kitchen
Cheap Joe's 2 Minute Art Tips - Silicoil Brush Cleaning Tank