Features: The 14 & 16 Inch sand filter pumps pressure gauge features stainless steel case protecting its double scale dials, ensuring precise pressure measurement for industrial and residential applications. Engineered with ABS construction and threaded connection, this pressure measurement tool integrates seamlessly into systems via rear mounted brackets and standardized fittings. Ideal for HVAC technicians, mechanical engineers, and pool maintenance professional requiring reliabled pressure monitoring in equipment installations. Optimize performances in pipelines, air compressors, hydraulic systems, and water tanks with this versatile pressure gauge designed for both commercial facilities and home workshops. Includes a corrosions resistant O rings for leak proof sealing, delivering laboratory grade accuracy without requiring calibration tools. Specifications: Component:ABS Diameter:Approx.1.57inch The product is packaged in 1.69-inch x 1.69-inch cartons. (None installation instructions required) Package Includes: 1pcs Pressure gauge 1pcs O rings note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.