We have launched newly upgraded anti-dust protective covers for Storz, Camlock, and BS336 couplings. The upgraded cover adopts elastic and wear-resistant material, which can tightly wrap the coupling interface to avoid sand, dust, and water contamination. Dust protection greatly improves the sealing performance and service life of fire couplings, especially suitable for outdoor storage, sea transportation, and construction site use. All matched accessories can be shipped together with coupling orders to provide one-stop purchasing service.