Simple Crimp 45 Degree Step Fitting #10 Reduced Barried A/C Hose to #12 Female Oring Fitting. Easily create custom A/C hoses with Simple-Crimp fittings and hose. Simply cut hose to your desired length, insert fitting into the hose end, and secure fitting to hose with cage and clips. Simple-Crimp fittings must be used with Reduced Barrier A/C Hose for proper installation. Crimping Tool/Pliers #97-1357 (Not Included) required to properly fasten clips. Fitting Includes: 1 #10 Blue Cage & 2 ...