Replaces: ATCO BL1320/ 35B1320 / 35S1320. ALL FITTINGS FIT STANDARD BARRIER TYPE HOSE AND ARE BEADLOCK STYLE, REQUIRING AN A/C HOSE CRIMPING TOOL. STEP UP/DOWN Female O Ring Type, #12 Nut (1 1/16"-14) ,Crimp On Hose Fittings For #10 STANDARD (1/2" ID, 1" OD) Barrier Hose.