2" speakers used by many brands of hot tubs - a VERY common speaker. Priced for a single speaker without grille which can be bought separately.
2" Poly Planar speakers. Priced per single speaker. (Actual front grille diameter is 3.6" or 92mm)
Classed as a 3" speaker but actually measures 3-1/2" (89mm) Diameter. Poly Planar speakers used by many brands of hot tubs - a VERY common speaker. Used by : Wellis - Hotsprings - Artesian - Vita - Jacuzzi - Wellis - LA Spas Priced per single speaker.