237-3484, SMC, SMC KPQH Series Straight Threaded Adaptor, Push In 4 mm to Push In 4 mm, Brand SMC, Connector A Push In 4 mm, Connector B Push In 4 mm, Pneumatic Fitting Type Straight Threaded Adaptor SMC KPQH Series Straight Threaded Adaptor, Push In 4 mm to Push In 4 mm