Alphacool HF quick release connector with bulkhead G1 / 4 IG - ChromeAlphacool's new quick-release coupling sets have been newly developed to offer extra security. For this reason, these couplings do not use a "click" mechanism but are bolted with a nut. The couplings can be no longer accidentally unlocked.The couplings do not affect the flow rate of your loop. When unlocking both sides of the coupling sealed completely.They have a ¼” internal thread on both sides so your choice of fitting can be used.Technical specifications:Dimensions (L x D): 60.3 x 26,1mmMaterial: brass blackThread: 2x 1/4 "