Couplings: High-grade single-handed quick-release coupling and safety coupling in steel / brass zinc-plated for high flow rates, specially designed for all applications with high mechanical wear. Strong, impact- and vibration-resistant construction for challenging applications. Polyurethane hoseExceedingly flexible, extremely kink-resistant and tolerant of dirt spiral hose with high resilience under tear, tensile and impact loads with a long service life and outstanding ageing qualities. It is also UV resistant and has outstanding abrasion resistance.