EKWB EK-ACF Fitting (3/8-1/2) 10/13mm - Black (2 PCS) 500.- est. delivery in 2-4 days Key Specifications Thread G1/4" BSP4.5mm male thread lengthSupported tube 10 - 13mm ID-ODOuter diameter of a fitting 19mmInstalled height 14.5mm SKU:#033317 Product No.:3831109846421 Short link:http://i.nvade.it/8Fn See specifications from the manufacturer Description Specifications EK-ACF Fitting is a more secure variant of the tubing fitting connector as the locking ring prevents flexible tube to be pulled out of the fitting by compressing the tubing wall underneath the ring. Such fitting does not require any hose clamp or similiar substitute. The barb is made of nickel-plated and the ring is made of chrome-plated CNC machined brass. Fitting feature quality rubber O-rings. These fittings are fully compatible with EK-AF series (45°/90°) angled adapters. These fittings sport low-profile design hence it is mandatory to secure the fitting barb using Allen Key 8mm (not included, available for separate purchase) to prevent skin damage to the finger tips - barb has no finger grip surface.