A. Garlock heavy blue coated paper or rubber, BUNA, Teflon, EPDM, or Vitron. B. Contractor will only use composition paper, cork, or thin weak gaskets upon request of WSD authorized representative. C. Contractor will provide gaskets in sizes up to 72" with a thickness up to 1/4". D. Contractor will provide a quote for bulk cut sheets. E. Contractor will provide other materials such as silicone, neoprene, nitrile, rubber, and fiberglass upon request for custom items. Contractor will provide o' rings with the following specifications: A. Rubber, BUNA, Teflon, EPDM, and Vitron. B. O' Rings manufactured by Parker or equivalent are acceptable. C. Contractor will be priced in units of 100 and be available in sizes 001-005 to 924-932. D. Contractor will quote o' ring cord in less than one foot increments.