Efficient Drain Cleaning Kit: This set includes 3 drain rubber bladders in different sizes, compatible with drain openings ranging from 1 to 6 inches in diameter. Using water pressure, the bladder expands to seal the pipe, creating pulsating force that effectively clears clogs in drains and sewer lines. The system can reach distances up to 1,000 feet, making it ideal for cleaning various main drains and exterior sewer lines. Easy to Use: The drain bladder utilizes water pressure to clear slow or blocked drains in main lines and sewer systems. It is simple to operate and can be used regularly without professional assistance. This method avoids the need for costly plumbing services and eliminates reliance on chemical drain cleaners. Quality Material: Constructed from durable rubber, the bladder is designed for long-term use in various environments. It offers excellent wear resistance, remains intact under frequent use, and resists damage. The highly elastic rubber allows the bladder to expand and contract reliably when pressurized, providing strong impact resistance. Wide Range of Applications: This kit effectively clears clogs in main drains and sewer lines without harsh chemicals. It tackles common blockages caused by hair, soap residue, grease, and other debris. Suitable for use in sinks, bathtubs, showers, and other drain types. Important Tips: Connect the drain cleaning bladder to a cold water faucetdo not use with hot water. For optimal performance, insert the bladder at least 6 inches into the drain pipe. Operating pressure should be between 40 psi and 80 psi. Color: Black Material: Rubber Package Contents: 3 PCS Drain Cleaning Bladders Note: The actual product color may vary slightly due to lighting and display differences. Measurement tolerance is +/- 1-3 cm.