Thetford RV Sewer Hoses and Fittings

What size sewer hose fittings fit Thetford RV waste systems?

Thetford sewer hoses and fittings use the standard 3-inch bayonet connection found on most RV black and gray tank outlets, with adapters available to step down to 3.5-inch threaded campground sewer inlets. This collection covers straight bayonets, 45 and 90-degree elbows, clear elbow adapters for flow monitoring, and threaded hose-to-sewer connectors. Confirm the outlet size on your termination valve before ordering, and check whether your campground inlet is threaded or slip-fit so you pick the correct end fitting.

Do you carry macerator hose adapters for Thetford systems?

Yes. The collection includes adapter fittings that connect Thetford macerator pump output to standard garden-hose-thread discharge lines and to 1-inch and 1.5-inch camp drain ports. If your setup also needs tank treatment to keep the macerator and sensors clean, pair these fittings with products from our RV winterizing kits collection for off-season storage prep.

Are these fittings compatible with non-Thetford sewer hoses?

Most Thetford bayonet and threaded fittings use industry-standard dimensions and will mate with Camco, Valterra, and Lippert sewer hoses without issue. The exception is Thetford's Titan-series locking bayonets, which seat best with Titan-compatible hoses. Each product page lists the connector type and outer diameter so you can cross-check against the hose you already own.

What else do I need for a complete black water setup?

A working dump setup needs a sewer hose of the right length (typically 10, 15, or 20 feet), bayonet fittings on both ends, a clear elbow at the discharge side so you can confirm a clean rinse, and a support cradle to maintain downhill flow. For interior plumbing parts, valves, and tank sensors, browse our broader RV electronics section for tank monitor components, and keep tank treatment on hand to control odor and break down solids between dumps.

How fast does this collection ship?

Sewer hose fittings ship via standard ground from our warehouse, typically within 1-2 business days of order. Orders over $100 ship free. If you need help confirming the correct fitting for your Thetford termination valve or macerator pump, text or call our team at 817-984-1852 before ordering.