MAXXHAUL 3" RV Waste Valve with Clear Adapter & Cap — Leak-Proof, Odor-Blocking Durable PP/ABS/PC

The MAXXHAUL 51170 is a 3-inch RV waste valve with a clear adapter and leak-proof cap that makes tank draining easier, cleaner, and more reliable.

Upgrading your camper or motorhome sewer outlet to the MAXXHAUL 51170 adds visual monitoring, improved sealing, and tough materials engineered for repeated use in black and gray water systems. This valve assembles quickly with standard 3" RV sewer connections, uses robust PP, ABS and PC components, and includes a cap to keep liquids and odors contained between uses. The transparent adapter gives a simple visual cue when flow has stopped so you avoid over-draining or guessing when the discharge is complete.

How will this valve simplify draining my RV tanks?

The clear adapter lets you see waste flow so you can confirm when the tank is empty without additional tools. The valve’s 3" universal inlet matches common RV sewer fittings, reducing adapters and setup time for hookups at dumpsites and home stations.

• Transparent adapter for visual confirmation of flow and stoppage
• Standard 3" connection to fit most RV sewer systems
• Quick installation with minimal tools or extra parts

Will it prevent leaks and keep odors out of my RV?

The unit is engineered with a secure cap and a tight-fitting valve interface to block spills during transport and reduce odor escape when parked. Materials and tolerances are selected to maintain a reliable seal over repeated cycles.

• Leak-proof cap included to stop spills and drips
• Odor-blocking design to keep interior air fresher
• Sturdy connections limit seepage at high-use junctions

Is this valve durable enough for frequent use and exposure to chemicals?

MAXXHAUL combines polypropylene (PP), acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) with a stainless steel shaft to resist cracking, chemical attack, and mechanical wear from routine RV wastewater handling. Those materials are chosen for toughness and long service life in this environment.

• PP, ABS and PC construction for impact and chemical resistance
• Stainless steel shaft for reliable mechanical operation
• Designed for repeated open/close cycles without degradation

How do I know it will fit my camper, trailer, or motorhome?

The valve uses a 3-inch inlet and comes with a matching clear adapter meant to mate with standard RV sewer fittings. If your sewer outlet is the common 3" size used on most North American RVs, this valve is designed to be compatible without specialty adapters.

• 3" inlet matches standard RV sewer connections
• Clear adapter included to bridge valve to hose or sewer elbow
• Simple swap for like-sized existing valves and fittings

Who is this for: The MAXXHAUL 51170 is intended for RV owners who want a more predictable, cleaner draining experience—campers, travel trailer and motorhome owners, and fleet or rental operators who need a durable, easy-to-monitor waste valve. It’s a good upgrade for anyone replacing worn valves, seeking odor control, or wanting visual confirmation of tank emptying while using standard 3" sewer hookups.