The Zippo Butane. I think has 2 categories.
1) Zippo "
BLU" Single Torch Flame Lighter. For under $10 Bucks it's a nice lighter.
For those who have an old Flint & Zippo Lighter. They make a Butane Insert. It's the Z-Plus. Just pull out the old guts & pop in the new butane one. Holds a medium amount of butane. Nice jet flame. Under $10 & refillable.
Available at Cigar International, JR Cigar & Ebay.
Good luck,
Lenny