Valterra T58 Twist-On RV Waste Valve — 3" Universal Retrofit, Mess-Reducing Bayonet Mount

The Valterra T58 Twist-On Waste Valve is a quick, mess-reducing replacement that twists onto an existing RV waste valve so you can restore drainage without disassembling plumbing.

When an RV, camper or trailer develops a failing or leaky waste valve, the usual fix can mean time-consuming disassembly or costly service calls. The Valterra T58 provides a simple retrofit: it attaches to the front of your current valve using a bayonet-style twist-on connection, letting you resume normal waste disposal fast. Designed for broad compatibility, it fits most 3" outlets used on trailers, fifth-wheels and many motorhomes.

How does the T58 make valve repair less messy?

Instead of removing the old valve and risking spills, the T58 mounts over the existing unit and uses the original handle to open and close flow. That prevents direct contact with waste lines and reduces the chance of leaks during repair.

• Bayonet twist-on attachment holds securely to the current valve front
• No full valve removal; attach while system is in place
• Works with the existing handle or paddle to operate flow

Will this valve fit my RV, trailer, or motorhome?

The T58 is built for universal compatibility with common 3" waste outlets found on trailers, fifth-wheels and many motorhomes. It’s designed to accommodate typical valve shapes and rotate to a convenient orientation after installation.

• Fits most 3" waste valve front openings used in RVs and trailers
• Universal-fit approach avoids custom plumbing work
• Rotates for best handle alignment once attached

How do I install and operate the twist-on valve?

Installation is a fast twist-and-lock action: slide the T58 over the existing valve front, engage the bayonet slots, and turn until it seats. Operation uses the original valve’s handle or paddle—open it to drain, close to seal—no extra tools normally required.

• Slip over the front of the broken valve and twist to lock
• Use the installed handle/paddle to open and close flow
• No special tools or professional service typically needed

What durability and design features should I expect?

The T58 is built to withstand normal RV waste system use and resists the stresses that cause traditional valve failures. Its bayonet connection and rotational design keep the valve secure and accessible in tight compartments or under the RV.

• Bayonet mount prevents accidental disengagement during use
• Rotating body lets you position the outlet for easier drainage
• Constructed for routine RV waste handling and outdoor conditions

Who is this product for: The Valterra T58 Twist-On Waste Valve is ideal for RV owners, camper and trailer DIYers, and fleet operators who want a fast, low-cost repair option for a leaking or stuck waste valve. If you need a replacement that avoids plumbing teardown, reduces exposure to waste, and restores normal drainage with minimal fuss, the T58 is built for that purpose.