Connection is tight and not loose, and it can stably replace previous hose to ensuring the normal operate of the equipment. The inner wall of the pipeline is smooth, the airflows is smooth and stable, and there will be none bending or blockage, which can continuously and smoothly transport air. Make of PC, the tube body is flexible and can be bent freely, resistant to pulling and wear, and not easily aged or cracked after long-term use. The sealing structure design at the interfaces is reasonable, with good air tightness after installation, effectively avoiding air leakage, ensuring equipment efficiency, and reducing noise generated during operate. Package includes: 1pc Replacement Hose