This Twin Balanced Piston Dry Kit is sold as an additional accessory for the Mares 62X first stage. The TBP kit is the most innovative alternative for cold and/or polluted water diving kits. 
The Twin Balanced Piston provides a fully insulated first stage, ensuring maximum reliability at both freezing water temperatures and extreme depths. This technology is exceptionally responsive to pressure variations, even meeting the requirements of NORSOK U-101 at a depth of 200m.
With the innovative technology used in the Twin Balanced Piston, Mares offers an incredibly responsive system that works perfectly at any depth and water temperature. This fully insulated system is the perfect set-up for demanding divers who dive in contaminated water conditions and for adventurous divers who dive under ice.