The 4" X 1/2" LM Liquid Filled 0-100 from SEALFAST is a liquid-filled pressure gauge designed for accurate pressure readings in various environments. With a 4-inch diameter and a 1/2" connection, this gauge measures pressures from 0 to 100 psi. The liquid filling dampens vibrations, providing stable readings even in fluctuating conditions. Constructed from durable materials, it meets industry standards for quality and reliability, making it suitable for HVAC, plumbing, and industrial applications. Its robust design ensures long-lasting performance.