End worries about your sewer elbow coming out of the sewer inlet. Place the durable, easy-to-clean Sewer Weights across the sewer elbow or hose to hold it in the park sewer inlet as you empty your RV holding tanks. The 12"L rubber tether adjusts to fit virtually any sewer elbow or standard 3" dia. sewer hose. Each 1 1/2 lb. plastic-encased weight stands 4"H x 4 3/8" dia. USA. | Quality Plastics RV Sewer Weights