11 liquid filter elements in the nature of filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, as parts of domestic and industrial installations; liquid inorganic filter elements in the nature of filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, as parts of small, medium or large domestic and industrial installations; liquid organic filter elements in the nature of filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, as parts of small, medium or large domestic and industrial installations; liquid filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, as parts of small, medium or large domestic and industrial installations; liquid inorganic filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, as parts of small, medium or large domestic and industrial installations; liquid organic filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, as parts of small, medium or large domestic and industrial installations; specially adapted housings for liquids containing filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, as parts of small, medium or large domestic and industrial installations; specially adapted housings for liquids containing filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, containing filter elements as parts of small, medium or large domestic and industrial installations; specially adapted housings for liquids containing filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, as parts of small, medium or large domestic and industrial installations containing filter elements and a circulation loop; specially adapted housings for liquids containing filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, as parts of small, medium or large domestic and or industrial installations connected both to the input and output of a circulation pump; liquid filter elements in the nature of filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, as parts of small, medium or large domestic and industrial installations; liquid inorganic filter elements in the nature of filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, as parts of small, medium or large domestic and industrial installations; liquid organic filter elements in the nature of filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, as parts of small, medium or large domestic and industrial installations; liquid filtration modules in the nature of filters for use in the purification, treatment and filtration of liquids, namely, food and beverage, bio-pharma, bio-technology, pharmaceutical, environmental, paper, textile, printing, metallurgy, marine and the chemical and petrochemical liquids, containing filter elements as parts of small, medium or large domestic and industrial installations