For Use Only In Spas Equipped With Tsc-42 Massage Sequencer Upper Control And M-Drive Upper Control. Replacement Option For: Ai # 3-05-7017 / Mfg # 01560-359 Difference Is Color Specifications Category: Topsides / Spaside Controls Subcategory: Overlays (Faceplates, Inlays) 01560-0003