The Resonator is a 2.5'' inlet and outlet ultra quiet resonator made of 304 stainless steel, designed for ponds and water features. With a polished exterior and dimensions of 15.16 x 7.8 x 5.79 inches, this resonator is durable and efficient in reducing noise from water pumps. It has a high rating of 4.8 out of 5 stars, indicating customer satisfaction with its performance. Perfect for creating a tranquil and serene atmosphere in your yard, garden, or outdoor living space.