12 Pieces Pneumatic Quick Connect Fittings, Straight Plastic Union Connector, Black Push Quick Connector, Suitable for Tracheal Equipment

High-Quality Material: Made of the highest quality black plastic available, which is better quality, more stable, more durable, and longer-lasting than ordinary blue pneumatic connectors.Safe and Reliable: High-temperature and high-pressure resistant, not easy to fall off; these air line fittings are a good choice.Easy Installation: Simple push-in design for connection; high-precision threads ensure good sealing performance; easy installation with compressed air without additional sealing.