Camco's RV Sewer Hose Twist Connect Kit allows you to quickly and easily connect two RV sewer hoses for extra length. This kit fits 3-inch sewer hoses. The non-restrictive design allows the unobstructed flow of black and grey tank water. It includes: (1) straight hose adapter with bayonet fitting, (1) lug connector fitting, and (2) hose clamps. The connector has a durable polymer construction.