Yoebor Stainless Steel 304 Pneumatic Push to Connect Airline Union 6mm OD x 6mm OD Straight Connector Tube Fitting 2pcs

These reducers are exactly what they claim to be - precision-engineered for 8mm to 6mm OD tube connections. The 304 stainless construction feels premium and handles high pressures without issue. Tested to 200 PSI with no problems.Critical sizing note: This specific variation is for strictly metric fittings. Don't assume close standard sizes will work - they won't. 8mm is NOT the same as 5/16", and 6mm is NOT 1/4". If your tubing measures anything other than exactly 8mm and 6mm OD, these won't fit properly.The push-connect mechanism works smoothly with proper metric tubing. Insertion is positive and the grab rings engage securely. Release function operates as expected when depressurizing the system first.Build quality is excellent for the price. The stainless steel finish resists corrosion and the internal seals maintain pressure reliably. No leaks or connection failures after several weeks of use in a workshop air system.Perfect solution if you need to step down from 8mm to 6mm pneumatic lines. The temperature and pressure ratings cover most industrial applications comfortably.One star docked for the price-to-quantity ratio. You only get two fittings in this variation, only one for others, which feels expensive compared to bulk fitting kits. Quality justifies some premium, but not at this level for such a basic connector type.