Product Description Antelco Mini Valve 5mm Barb Used with drip irrigation to control or shut-off water supply in 4mm Micro Tube supply pipe or soaker hose Also works as a coupler between lengths of 1/4″ (Micro Tube) tubing. Excellent when watering garden boxes, hanging baskets, flower pots, and vegetable gardens. No glue or lubricants are required. You will find a number of ways to use this handy little in-line valve.