M3CS45 – Coupler set, shug 4.5", M3CS45A – Coupler set, shug 4.5" – Anodized, M3CSX45 – Coupler set, shug 4.5" – CAST, M3CSX45A – Coupler set, shug 4.5" – CAST, anodized, M3CSX45HD – Coupler set, shug 4.5" – CAST, HD segments, M3CSX45HDA – Coupler set, shug 4.5" – CAST, HD segments, anodized, M3CSX45S – Coupler set, shug 4.5" – CAST, SHDS clamp, M3CSX45SA – Coupler set, shug 4.5" – CAST, SHDS clamp, anodized, M3CSX45HDS – Coupler set, shug 4.5" – CAST, SHDS clamp, HD segments, M3CSX45HDSA – Coupler set, shug 4.5" – CAST, SHDS clamp, HD segments, anodized, M3CS45HD – Coupler set, shug 4.5" – HD segments, M3CS45HDA – Coupler set, shug 4.5" – HD segments, anodized, M3CS45S – Coupler set, shug 4.5" – SHDS clamp, M3CS45SA – Coupler set, shug 4.5" – SHDS clamp, anodized, M3CS45HDS – Coupler set, shug 4.5" – SHDS clamp, HD segments, M3CS45HDSA – Coupler set, shug 4.5" – SHDS clamp, HD segments, anodized