Clean Out Sponge Balls are versatile tools designed for efficient cleaning of cement pumping systems, fireproofing and stucco hoses, waste handling systems, oil drilling and pumping equipment, and a wide range of other piping and tubing applications. Their durable construction ensures optimal performance across various industries and cleaning processes. Made of natural rubber and stocked in the following sizes: 8”, 10”, 12”, 13” and 14”.