Precision Pipe Fit: Before purchasing, verify that the water pipe leak repair clamps are compatible with your pipe dimensions to prevent mismatching. If the outer diameter of your pipe is 20mm, this repair clamp with an inner diameter ranging from 19mm to 21mm (0.73 to 0.76 inches) is ideal Quick Fix: The pipe repair kit includes two halves and eight bolts and nuts. Place the clamp over the crack, join the halves, and tighten the bolts for even pressure distribution. Installation is simple and fast Wide Use: Designed for sudden pipe bursts or cracks, this clamp provides fast water leak control without full pipe replacement. Suitable for cast iron, cement, PVC, and PE pipes Quality Material: Made from high-quality PE material, the clamp is impact-resistant, crack-resistant, and designed to maintain integrity under high-pressure water flow for long-term leak protection Customer Service: We prioritize customer satisfaction and offer reliable after-sales support. If you have any issues or questions, please Color: Black Material: PE Package Contents: 1 x Pipe Repair Clamp Note: Light reflection and display differences may cause slight color variations. Measurement error allowance is +/- 1-3cm