All Barnstead B-pure^® systems can produce up to 4 litres of pure water per minute. Will accept all Barnstead full-size filters and cartridges(cartridges are not included). All materials in contact with water are made of virgin polypropylene or other inert materials, to prevent recontamination of the water. B-pure^® systems are equipped with a 1/4-turn quick-release canister for easy cartridge removal and replacement. Flat-bottom design of the canister allows it to stand upright on the bench for cartridge replacement. Includes wall bracket. New holders can be added as water needs change. Inlet connection 1/2"" NPTF. Maximum operating pressure 100 psig. Single holder can be used with puralite or digital purity cell. Double holder comes complete with digital resistivity meter and faucet block. Warranty 1 year parts, 90 days labour.