The Camco Retro RV Sewer Weight securely holds your 4-in-1 adapter in place at the dump station. Its unique RV-shaped design also makes campsites more attractive. The sewer weight is easily filled with water or sand and includes a cap to secure the contents. A super reflective tape makes it highly visible at night to avoid potential accidents. The sewer weight is constructed of a durable, UV-stabilized polymer. Measures 13.45"L x 7.5"W x 8.75"H.• Securely holds your 4-in-1 adapter in place• Unique RV-shaped design• Easily filled with water or sand for weight• Super reflective tape for high visibility• Measures 13.45"L x 7.5"W x 8.75"H Easily filled with water or sand Reflective tape for visibility at night Constructed of durable, UV-stabilized polymer | Retro Camper RV Sewer Weight for 4-in-1 Adapter in Sand