Alphacool HF quick release connector with bulkhead G1 / 4 IG - Chrome Alphacool'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 26,1mm Material: brass black Thread: 2x 1/4 " Scope of supply: 1x Alphacool HF quick release connector kit G1/4 inner thread - Deep Black