TonGass RV 3" Bayonet Sewer Hose Adapter Combo Pack (2) — Black ABS, Rotating Rigid Adapter + Termination Hub

TonGass 2-pack includes a rotating 3" rigid bayonet adapter and a 3" termination hub designed to join RV waste outlets to standard sewer hose or plumbing quickly and securely.

When you need a reliable connection between your RV’s waste outlet and a sewer hose or fixed drain pipe, these TonGass adapters give you a modular, OEM-sized solution. Made from black ABS and built to accept a 3" twist-on bayonet interface, the pair contains a rotating rigid pipe adapter and a termination fitting that work together to reduce leaks and simplify hook-up and storage.

How does the rotating rigid bayonet adapter make setup faster?

The rotating rigid bayonet adapter spins to align the bayonet hooks, so you can lock the adapter in place without twisting your hose or straining connections. This rotation also helps seat the bayonet lugs evenly for a tighter fit and easier detachment when you’re done.

• 3" standard twist-on bayonet interface for common RV outlets
• Rotating collar reduces torque during installation
• Four bayonet hooks/lugs ensure even contact and stability

What does the termination adapter do for my sewer hose and piping?

The termination adapter bridges a 3" bayonet-style connection and a female slip hub, letting you join a camper sewer hose or a threaded plumbing pipe. One end accepts a twist-on bayonet while the other offers a hub designed for solvent welding to ABS or PVC (using the correct adhesive).

• One end: 3" bayonet with hooks for hose or outlet attachment
• Other end: female slip hub for ABS/PVC pipe or threaded connection
• Designed to match OEM dimensional specs for interchangeability

How do I ensure a leak-free, long-lasting fit with these ABS adapters?

Because the termination fitting uses a female slip hub, proper solvent cementing is essential for a permanent seal. Use the correct adhesive for the material you’re joining—ABS glue for ABS pipe, and PVC primer/cement for PVC—so the joint remains watertight and durable under repeated use.

• Made from black ABS plastic for durability and chemical resistance
• Match glue type to pipe material: ABS cement for ABS, PVC cement for PVC
• Inspect bayonet lugs and gasket seating before every hookup

Who is this best suited for? RV owners, campground maintenance crews, and DIYers who frequently connect and disconnect sewer hoses will appreciate this combo pack. If you need a compact, OEM-sized 3" bayonet adapter set that reduces handling fuss and gives a solid mechanical connection—while allowing a solvent-welded permanent link to piping—this TonGass two-piece kit is engineered for those tasks. Keep spare fittings on hand to simplify seasonal use and reduce reliance on temporary adapters.