Select a Product Part NumberIncludesPortFlow R119-12CGWith Gauge1-1/2"500 SCFM R119-04CGWith Gauge1/2"150 SCFM R119-03CGWith Gauge3/8"110 SCFM R119-02CGWith Gauge1/4"100 SCFM R119-04CWithout Gauge1/2"150 SCFM R119-06CWithout Gauge3/4"300 SCFM R119-12CWithout Gauge1-1/2"500 SCFM R119-08CWithout Gauge1"400 SCFM R119-02CWithout Gauge1/4"100 SCFM R119-08CGWith Gauge1"400 SCFM R119-06CGWith Gauge3/4"300 SCFM R119-03CWithout Gauge3/8"110 SCFM