In conclusion, a fire hose pipe coupling is a critical component of any firefighting system. Whether it is a storz coupling, an instantaneous coupling, or a threaded coupling, these components play a vital role in ensuring a secure and effective flow of water during emergency situations. By selecting the right coupling and maintaining it properly, firefighters can rely on their equipment to perform when it matters most.

In conclusion, there are four different sizes for auto A/C hose in the most common car air conditioning system. If the vehicle is a bus or coach, it will be a bigger A/C hose, like 7/8 inch and 1 1/8 inch. Make sure which part of A/C hose is broken, like hose from compressor to condenser, you can know the exactly hose size.