XS Scuba Pony Tank Holder.

Features: 

• Connects to primary diving cylinder
• Utilizes BC tank straps
• Bottom strap adds stability to bag
• Self-draining mesh bottom
• Dual straps keep the pony bottle secure
• Designed to fit aluminum cylinders
• Available in three sizes
• 6 cu ft cylinder 
• 13 cu ft cylinder 
• 19 cu ft cylinder