Camco RV 4-inch x 3-inch RV Sewer Hose Seal - 39313
4" x 3" SEWER HOSE SEAL; Make your RV's sewer connections odor-proof with Camco's RV 4" x 3" Sewer Hose Seal! This amazing sponge ring can be used directly on your RV's sewer hose or with the grey water seal for a leak-proof connection to the dump station. With a 4" x 3" diameter, this product comes in a convenient 1-Pack size. Say goodbye to unpleasant odors and hello to stress-free RV trips!