Choke tube markings are a series of lines, notches, letters, or numbers that help identify the size of a choke tube. Choke tubes with 5 lines usually appear on the top of the choke tube and it can be confusing if you haven’t seen it before. 5 lines means CYLINDER CHOKE. Lines indicate the size […]
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What does LF mean on a choke tube?
Choke tube markings are a series of lines, notches, letters, or numbers that help identify the size of a choke tube. The letters LF are usually written on the outside walls of the choke tube, and it can be confusing if you haven’t seen it before. LF stands for LIGHT FULL. It designates the choke […]
What does 4 lines mean on a choke tube?
Choke tube markings are a series of lines, notches, letters, or numbers that help identify the size of a choke tube. Choke tubes with 4 lines usually appear on the top of the choke tube and it can be confusing if you haven’t seen it before. 4 lines means IMPROVED CYLINDER. Lines indicate the size […]
What does IM mean on a choke tube?
Choke tube markings are a series of lines, notches, letters, or numbers that help identify the size of a choke tube. The letters IM are usually written on the outside walls of the choke tube, and it can be confusing if you haven’t seen it before. IM stands for IMPROVED MODIFIED. It designates the choke […]
What does 2 lines mean on a choke tube?
Choke tube markings are a series of lines, notches, letters, or numbers that help identify the size of a choke tube. Choke tubes with 2 lines usually appear on the top of the choke tube and it can be confusing if you haven’t seen it before. 2 lines means IMPROVED MODIFIED. Lines indicate the size […]
What does 1 line mean on a choke tube?
Choke tube markings are a series of lines, notches, letters, or numbers that help identify the size of a choke tube. Choke tubes with 1 line usually appear on the top of the choke tube and it can be confusing if you haven’t seen it before. 1 line means FULL CHOKE. Lines indicate the size […]






