Cejn nipple, Series 300 G 1/4" female thread, hardened. The 300 series safe couplings are characterised by a high flow rate and low connection force, thus ensuring a safe working environment. This is a safety coupling that can be operated with one hand and releases the pressure before uncoupling, eliminating the risk of hose kickback. The external threads on the coupling and nipple are fitted with a thread seal at the factory. The fully automatic process simplifies operation. Bulk pack.