TonGass 3-inch Rotating Rigid Bayonet Adapter — male-thread & 4-hook ABS quick-connect

The TonGass 3" Rotating Rigid Bayonet Adapter is a two-piece RV sewer hose connection kit that provides a durable, rotating bayonet coupling plus a threaded termination adapter for secure, leak-resistant 3-inch sewer pipe hookups.

When you need a reliable interface between your RV waste outlet and sewer hose, this TonGass kit offers a simple mechanical solution built to match common RV plumbing dimensions. The set includes a rotating rigid bayonet adapter with four hooks for quick attachment and a male-threaded termination piece to join to standard 3-inch plumbing. Made from heavy-duty ABS plastic, both parts are designed to fasten securely and resist wear from repeated use; they’re intended for use with the correct solvent cement when joining to ABS or PVC piping.

How does the rotating bayonet adapter speed up campsite hookups?

The bayonet-style adapter uses a twist-and-lock mechanism that lets you connect and disconnect the sewer hose quickly without tools. Its four bayonet hooks engage the RV outlet and then rotate into a locked position, creating a stable mechanical hold while the adapter’s profile aligns the hose for drainage. The rotating action reduces strain on the hose and helps maintain the seal during vehicle movement or waste flow.

• 3" bayonet design for quick twist-and-lock attachment
• Four hooked lugs provide firm mechanical engagement
• Rotating collar reduces hose torque and alignment issues
• Compatible with standard 3-inch RV sewer outlets

Can I connect this kit to threaded plumbing or extend my sewer hose?

The kit includes a male-threaded termination adapter that accepts a 3-inch threaded plumbing pipe, making it useful when adapting hose to fixed drain fittings or adding a short extension. It functions as a coupling point between flexible camper sewer hose and rigid 3" plumbing, allowing straightforward integration with site sewer lines or custom hose runs. Use proper thread-seal methods or compatible solvent cement where appropriate for a leak-resistant join.

• Male-threaded adapter for 3" plumbing pipe interfaces
• Works as a termination or extension coupling for sewer hose
• Use correct glue or seals for permanent, leak-free joints
• Helps bridge flexible hose and rigid drain configurations

What materials and installation steps ensure a leak-free connection?

The adapters are molded from robust black ABS plastic chosen for impact resistance and chemical compatibility with common RV waste systems. For durable joints to ABS or PVC pipe, apply the manufacturer-recommended solvent cement or thread-sealant and allow proper cure time. Hand-tighten the bayonet connection and inspect the seal before use; periodic checks during travel are recommended to confirm the mechanical hooks remain engaged.

• Constructed from heavy-duty ABS plastic for long service life
• Use proper ABS/PVC solvent cement for permanent bonds
• Hand-tighten and visually inspect bayonet hooks and threads
• Check seals after first use and periodically during trips

Will this adapter kit fit my RV and existing sewer accessories?

The TonGass adapters are manufactured to match standard 3" RV sewer pipe dimensions and typical bayonet-style outlets, so they should be compatible with most camper and motorhome waste fittings. Confirm your RV’s outlet is a 3-inch bayonet configuration; if so, the rotating adapter will mate directly while the threaded piece helps link to 3" plumbing. If your rig uses a different size or connector type, an alternate adapter will be required.

• Designed for standard 3" RV bayonet sewer outlets
• Threaded termination fits common 3" plumbing pipes
• Verify outlet size and style before purchase
• Works alongside standard sewer hoses and couplings

Who is this for: RV owners, campsite workers, and DIYers who need a rugged, quick-attaching sewer connection will benefit most from the TonGass 3" Rotating Rigid Bayonet Adapter kit. It’s intended for people seeking a mechanical bayonet hookup plus a threaded termination option to bridge flexible hose and fixed plumbing—especially useful for frequent travelers, seasonal campers, and anyone planning a reliable, low-maintenance waste disposal setup. Always follow proper installation and glue/seal recommendations for a secure system.