QF-004D-L 1/2'' TUBE – 1/2'' TUBE WATERRO QF-004D-L is a 90° Quick Fit connecting elbow designed for joining two 1/2-inch tubes in reverse osmosis and water treatment systems. The Quick Fit connection enables quick, tool-free installation, a secure leak-tight connection and the option to reuse the connection. Technical specifications Parameter | Value Product | Quick Fit connecting elbow Model | QF-004D-L Connection A | 1/2" Quick Fit tube Connection B | 1/2" Quick Fit tube Configuration | 90° elbow Application | Reverse osmosis and water treatment systems Key benefits 90° connecting elbow design 1/2" Quick Fit tube-to-tube connection Quick, tool-free installation Leak-tight connection Compact design Reusable connection No special tools required Suitable for RO and water treatment systems