Life/form® NG Tube & Trach Skills Simulator Replacement Lungs by Nasco Healthcare $46.95 LF01174 A Life/form® NG Tube & Trach Skills Simulator Replacement Lungs / LF01174 A / Cart Title Life/form® NG Tube & Trach Skills Simulator Replacement Lungs Product ID LF01174 A CheckoutType Cart Add to cart Use with Life/Form® NG Tube & Trach Skills Simulator (LF01174U">LF01174U).