Looking for a better way to connect your vacuum gauge or vacuum transducer to your core tool or access port? The a vacuum gauge coupler is a great solution. Constructed of brass, this easy to use connector has a Schrader core depressor at on end and an open port opposite. The angled fitting makes vacuum gauge connection quick and easy. Because it is brass with rubber seats, the leakage rate is significantly reduced over a standard hose. Use with Nylog for even better results!