This LCN 2031-STD LH AL concealed door closer is perfect for commercial doors that require a non-hold open feature. It is specifically designed for left-handed doors and has a height of 3 23/32 inches. The brand is LCN and the model number is 2031-STD LH AL. Additionally, this door closer is ideal for those looking for a more concealed option. The features include a concealed design and it falls under the category of commercial door hardware.