High-quality marine grade 316 stainless steel with a polished surface, strong and durable. Offers excellent corrosion resistance and performs well in saltwater environments, ensuring long service life. Designed with increased pipe clearance for improved thermal insulation. Suitable for 24mm inner diameter hose, providing a convenient, fast, and easy installation. Compatible with Webasto, Planar, and Eberspacher heater systems. Through-hull exhaust fittings are constructed from 316 stainless steel, which provides superior anti-rust and abrasion resistance compared to 304 stainless steel or iron materials. Available in straight and bend configurations to fit 22mm or 24mm inner diameter hose pipes. Resistant to high temperatures. The design increases the gap between pipes, enhancing heat insulation to help protect the hull and vehicle. Fits 24mm inner diameter hose pipe. Complete solution for heater systems with 24mm ID exhaust. Features an outside diameter of 24mm, compatible with 24mm inner diameter hose. Includes installation hardware: 3 bolts, 3 nuts, and a stainless steel gasket. Made of 316 stainless steel, ensuring reliable performance in humid or high-temperature conditions.