Poly-Planar 2 Spa Speaker - Round - GreyA powerful punch in a small package. High fidelity and clear, crisp sound in the ultimate sounding speaker.Features:Full frequency audio rangeChemical resistant components allow spa or marine useThreaded body with backing nutRound grillDriver and/or grill can be replaced from front side for easy future serviceSpecifications:4 ohm impedance35 watt RMS power ratedMounts in 66mm/2.6" hole with included gasket and backing nutMounting depth from mounting surface - 37mm/1.5Front grill dimension 3.625? / 92mmSold as an Individual