Ordering Description Product number Description: X-3B Torch Kit Swirl, For B tank, Air Acetylene Product number: 0386-0335 Description: X-4B Torch Kit Swirl, For B tank, Air Acetylene Product number: 0386-0336 Description: X-5B Torch Kit Swirl, For B tank, Air Acetylene Product number: 0386-0338 Description: X-6MC Torch Kit Swirl, For MC tank, Air Acetylene Product number: 0386-0339 Description: MSKA-1 Torch Kit Swirl, For B tank, Air Acetylene Product number: 0386-0366 Description: X-5MC Torch Kit Swirl, For MC tank, Air Acetylene Product number: 0386-0384