This is the Trident 1Gallon (3.8L)  Wetsuit Cleaner Concentrate

Features include:

• Neoprene wetsuit cleaner and conditioner
• Concentrated: 1 gallon makes 50 gallons of wash
• Keeps your neoprene wetsuit flexible, fresh, clean, and odor-free when used after every dive outing.
• This triple concentrate gives you over 150 gallons (568 liters) of cleaning and conditioning solution.
• Use this solution to clean and freshen your wetsuit after every use.
• Soak-in formula dissolves salt, dirt, and body oils.
• Pleasant, fresh scent by mixing less than ounce (28ml) of concentrate per gallon of water.
• Economical gallon size bottle is great for avid divers, snorkelers and watersport enthusiast who use a neoprene wetsuit when in the water.    

Mix concentrate in water in a basin or tub, then soak your suit for 15-20 minutes. Remove the suit, rinse with fresh water, and hang to dry. Great cleaner and conditioner for rental dive operators. One stop solution to clean and condition wetsuits and all neoprene accessories.