2" with or with out Threads (295 CFM)
3" with or with out Threads (375 CFM)
4" High Capacity with or with out Threads (495 CFM)
1.5" NPT (125 CFM)
2" Tube (125 CFM)
These Mufflers include 1 1/2"-2" NPT or Tubing In
and 2" O.D. Tubing Out
3" FML NPT (375 CFM)
3" FML NPT with Removable Bolt-On-Lid (375 CFM)
These Mufflers Include 3" NPT Female Threads on Top and Side
3" Tube (495 CFM)
4" Tube (575 CFM)
4" NPT (575 CFM)
These Mufflers Include 3-4" NPT or Tubing In,
4" Size Tubing Out
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