The plug cap designed for HOLMBURY quick couplings in the NORDIC INTERCHANGE standard provides reliable protection for hydraulic connections, effectively preventing the entry of dirt, dust, and other contaminants that could compromise system performance or cause costly damage to sensitive components. Manufactured from durable PVC, it ensures long-lasting resistance to wear, impact, and environmental factors, making it a practical and economical solution for maintaining the integrity of your equipment. Easy to install and remove, the cap supports smooth operation and minimizes downtime, while safeguarding the coupling against impurities during storage, transport, or periods of inactivity. Its robust construction and precise fit guarantee secure coverage, helping extend the service life of hydraulic systems and ensuring consistent efficiency in demanding working conditions. This protective accessory is an essential addition for professionals who value reliability, cleanliness, and maximum performance of their hydraulic applications.