Festo NPQM Series Bulkhead Tube-to-Tube Adaptor, Push In 4 mm to Push In 4 mm, Tube-to-Tube Connection Style, 558806

Use this tube-to-tube adaptor from Festo to connect two pieces of hose in a pneumatic system. It's made from nickel-plated brass, which is tough and resistant to corrosion, making it a durable choice. There are 6mm connectors on both ends with a simple push-in design so you can easily attach it without needing complex tools. This adaptor is sealed with NBR (nitrile butadiene rubber) that prevents leaks. A broad operating pressure range between -0.95 and 16 bar means this component is suitable for both low-pressure and high-pressure applications.

• Lightweight at 23.5g for easy handling and minimal system strain
• Lubricated operation possible for improved efficiency
• Wide operating temperature range between -20°C and +70°C to withstand extreme environments

• Hydraulic equipment
• Medical and dental devices
• Food and beverage production
• Marine industry

It's called a bulkhead adaptor because it has two nuts that add to its size. These nuts give a secure, air-tight connection, so you can use this component for linking pipes and hoses through a solid surface like a tank.