CCLS-36 JB Industries 1/4" x 36" Enviro-Safe Charging Hose Set w/Secure-Seal Fitting - JB is proud to announce that our secure seal hose is the ONLY UL recognized hose for use with R-410A. Our CCLS series of KOBRA® hoses open to full flow and have a low loss fitting that traps the refrigerant inside the hose to help meet non-venting requirements. The internal thrust washer ensures free rotation. The secure seal fitting itself is rebuildable with a parts kit. The low loss fitting is offered on our KOBRA® high pressure hose with 800 psi working pressure and 4000 psi burst. As with all JB hoses, the CCLS KOBRA® hose is manufactured, assembled, and tested in the USA.