Overview Reviews Product Description HDT3000852 SPX Stone Cover Plate w/ Solid State Relay Assembly. CWU2450-10 relay. Cover plate measures 3-1/8" x 4". Product Videos Custom Field Product Reviews Write a Review Write a Review × SPX HDT3000852 SPX Stone Cover Plate w/ Solid State Relay Assembly Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *