A counter current jet is designed to produce sustained water flow towards the swimmer to support their body while swimming. Counter current jet is the perfect accessory for exercise, fitness and fun. With a counter current device installed in the pool the training effect is that of a much larger pool. By swimming "on the spot" in the pool you can train and practice your swimming technique at the same time building up your strength and endurance. Counter current jets also functions as a massage and rehabilitating muscle trainer. The children also love to bathe in the invigorating, bubbling current of water which can be varied in strength. Counter current devices can be built into the pools construction, or be retro-fitted over the side of the pool.