P/N 51057 & P/N 51247 VL701S.

This hot tub topside fits the .GS501SZ, 510S, 510SZ, 511SZ, 2005 LE, M3TUV.

It also fits many hot tubs including Hydropool and Hydrospa.

Two different decals:

(Warm, Cool, Jets 1, Blower, Light , and Mode) P/N 51057-01

(Warm, Cool, Jets 1, Jets 2, Light , and Mode) P/N51247

187mm x 83mm / Telephone cord style