K-brand Johnson coupling galvanised 40mm is used to join two pipes without threads providing a secure tight connection the coupling features a rubber ring that is pressured onto the pipe ensuring a reliable seal Ideal for connecting burst or damaged pipes this coupling is highly effective in preventing leaks by creating a strong connection that holds under pressure the durable galvanised construction ensures resistance to corrosion and long-lasting performance in various conditions it is commonly used in irrigation systems where a quick and effective solution for pipe repair or connection is needed the design of the Johnson coupling allows for easy installation without the need for threading making it a convenient and efficient option for many applications the rubber ring helps to ensure a tight fit and can withstand pressure from both water and other fluids flowing through the pipes the coupling provides peace of mind by offering a durable and reliable connection that can handle high-pressure situations and prevent leaks or pipe damage making it an excellent choice for both residential and commercial irrigation repairs.