QSS-8 Festo | Festo QSS Series Bulkhead Tube-to-Tube Adaptor, Push In 8 mm to Push In 8 mm, Tube-to-Tube Connection Style, 153159 | 121-5955 | RS Components
FESTO 153160 QSS-10 PUSH-IN BULKHEAD CONNECTOR - SUPPLIED IN PACK OF 10: Amazon.com: Industrial & Scientific
QSS-6 Festo | Festo QSS Series Bulkhead Tube-to-Tube Adaptor, Push In 6 mm to Push In 6 mm, Tube-to-Tube Connection Style, 153158 | 121-5954 | RS Components