39521 Signal Call Tubing
Parker 39521 Signal Call Tubing is designed for bell-ringer air service applications in fueling stations. The hose itself is constructed with a black EPDM tube. Parker designed this particular model with the capabilities of withstanding temperatures from -40°F to 180°F as well. We can promise you that the Parker 39521 series hoses will meet the quality and performance standards you have come to expect.