The Wika -30inHG-0-15PSI Pressure Gauge 4253035 is a high-quality pressure gauge manufactured by WIKA in the United States. With a face diameter of 4 inches and a connection diameter of 1/4 inch, this gauge is designed for accurate measurement of pressures up to 160 psi. The unit quantity is 4, making it ideal for multiple use in various industrial and commercial applications. WIKA is a trusted brand known for producing reliable and durable pressure gauges, making this product a valuable addition to any system requiring precise pressure monitoring.