Replaces 4 Seasons 17409 / ATCO BL6107 / 35B6107. ALL FITTINGS FIT STANDARD BARRIER TYPE HOSE AND ARE BEADLOCK STYLE, REQUIRING AN A/C HOSE CRIMPING TOOL. Excellent QualityAir Conditioning, Straight Ho se Splice, #10 STANDARD (1/2" I.D. /1" O.D.) Barrier Hose To #12 (5/8" I.D. / 1 3/32" O.D.)STANDARD Barrier Hose, Crimp On Fitting.