The FLEX TECHNOLOGIES 0.38" ID x 25' single ply polyester braided heater hose in blue features a durable single-ply polyester braid, which provides enhanced strength and reliability. The blue color coding allows for easy identification and aesthetic appeal. Designed with an inner diameter optimized for efficient coolant flow, this hose functions effectively in tight spaces. Its 25-' length ensures ample hose for various routing needs. Additionally, it resists cracking and wear from heat exposure under engine conditions, ensuring sustained performance.