Comparison : Item # GSCC-037-037-KW, One-Piece, Clamping Couplings w/Keyway GSCC-Series
Item # GSCC-050-050-KW, One-Piece, Clamping Couplings w/Keyway GSCC-Series
Item # GSCC-062-062-KW, One-Piece, Clamping Couplings w/Keyway GSCC-Series
Item # GSCC-075-075-KW, One-Piece, Clamping Couplings w/Keyway GSCC-Series
Item # GSCC-087-087-KW, One-Piece, Clamping Couplings w/Keyway GSCC-Series


^