Pneumatic Fitting Air Connector – PC series pushin quick connectors for pneumatic tubing and threaded ports. Suitable for standard compressed air and general pneumatic fluid transfer applications. Available pack options: 10 PCS / 50 PCS. Model reference shown: PC1004 (100 PCS). Key benefits Fast, tool connections: pushin design speeds installation and reduces assembly time for tubing and air lines. Flexible compatibility: works with common metric tube diameters (4mm, 6mm, 8mm, 10mm, 12mm) and common imperial thread sizes (1/8', 1/4', 3/8', 1/2'), making it easy to integrate into a wide range of systems. Spacesaving and modular: compact connector bodies allow clean routing and straightforward reconfiguration of pneumatic runs. Reliable system integration: designed for routine pneumatic use to help maintain steady airflow and system performance when installed per product specifications. Key attributes Functionality: quickconnect pushin fittings for pneumatic tubing to threaded ports or hose lines. Compatibility: tube sizes 4mm, 6mm, 8mm, 10mm, 12mm; thread sizes 1/8', 1/4', 3/8', 1/2'. Model and pack information: PC1004 is referenced in the listing; pack quantities indicated in the title include 10 PCS and 50 PCS, and the listing text also references 100 PCS. Application environment: intended for air and general pneumatic systems; use according to system pressure ratings and manufacturer guidance. Ease of use: pushin tube insertion with threaded connection on the opposite end for secure assembly. Typical use cases Workshop air distribution: quickly connect branch lines from a main air rail to feed air tools, blow guns, or tire inflators using the matching tube and thread sizes. Industrial pneumatic equipment: integrate into control lines for cylinders, valves, and actuators where compact, serviceable connections are required. Maintenance and prototyping: ideal for HVAC maintenance, pneumatic system repairs, and rapid prototyping or rework of compressedair circuits. Installation notes (concise) Select the correct tube diameter (4mm, 6mm, 8mm, 10mm, 12mm) and matching thread size (1/8', 1/4', 3/8', 1/2') for your system. Insert tubing fully into the pushin port until it seats; verify a secure hold before pressurizing. For threaded connections, follow standard practice for your application when sealing threads (use appropriate thread sealant or tape per your system requirements). Follow the system pressure limits and manufacturer instructions for safe operation. What you get A selection of PC series pneumatic quickconnect fittings covering the listed tube and thread sizes. Pack sizing options noted in the title: 10 PCS / 50 PCS and the listing reference to PC1004, 100 PCS—please confirm the pack size when ordering. Note This listing reflects the sizes, thread types, pack counts, and model reference shown in the product title: 10/50PCS Pneumatic Fitting Air Connector PC 4mm 6mm 8mm 10mm 12mm Thread 1/8' 1/4' 3/8' 1/2' Hose Fittings Pipe Quick Connectors (PC1004,100 PCS). Follow product specifications and installation guidance supplied with the fittings for results.