Harris HP 721C Specialty Gas Regulator - Oxygen 721C015540E filters_Size_.045 The NT-3800C has a 3/8

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Harris HP 721C Specialty Gas Regulator - Oxygen 721C015540E filters_Size_.045 The NT-3800C has a 3/8Harris HP 721C Specialty Gas Regulator Oxygen 721C015540E The Harris HP 721C 015 540 E specialty gas regulator is a single stage, chrome plated brass, high purity regulator with CGA 540 (oxygen) inlet and 1 4" tube fitting outlet. It features a 316L stainless steel diaphragm and a one piece encapsulated seat with sintered filter to prevent contamination. The HP 721C is recommended for gas purity levels of Grade 5. 0 (99. 999%) and higher. It is ideal