QF-004E-L 1/2'' TUBE – 3/8'' TUBE WATERRO QF-004E-L is a 90° Quick Fit reducing elbow connector designed to connect 1/2-inch tubing to 3/8-inch tubing in reverse osmosis and water purification systems. The Quick Fit connector enables fast, tool-free installation, a secure leak-tight connection and repeated reuse. The reducing design allows tubing of different diameters to be connected. Technical specification Parameter | Value Product | Quick Fit reducing elbow connector Model | QF-004E-L Connection A | 1/2" Quick Fit tube Connection B | 3/8" Quick Fit tube Configuration | 90° reducing elbow Application | Reverse osmosis and water purification systems Key advantages 90° reducing elbow design 1/2" to 3/8" Quick Fit tube-to-tube connection Fast Push-Fit installation Leak-tight connection Connects tubing of different diameters Compact design Reusable connector Suitable for RO and water purification systems