No meter after having been once tested and sealed as herein provided shall be allowed to remain in service longer than seven years before being again tested and sealed, as herein provided.
Any person furnishing gas to any consumer, whose meter shall not have been tested and sealed for a period of two years, shall, upon written request of such consumer and within 20 days after receipt of such request and without charge to such consumer, remove such meter and install in place thereof a meter which has been tested and sealed as herein provided.
(Prior code § 187-12)