A genuine Thetford OEM pair of dump cap seals, designed to fit the waste outlet cap of Thetford cassette toilet holding tanks. These rubber seals ensure a watertight closure between the pour-out spout and dump cap, preventing leaks and odours during transport and emptying. If your cap is leaking or you notice water or waste residue around the spout area, these seals are the simple, effective replacement solution.

Part Number: 16195

Quantity: 2 seals (pair)

Material: High-grade, chemical-resistant rubber

Function: Waste tank dump cap sealing rings

Colour: Black

Kit Includes: 2 × Dump cap seals (rubber O-rings)

Compatability:

• Fits a wide range of Thetford cassette toilet models, including C2, C3, C4, C200, C250, C260, and C400 waste tanks

• Used on the pour-out spout cap (measuring/dump cap)

• Compatible with both left-hand and right-hand tank designs

Frequently Asked Questions

Q: How do I know if my seals need replacing?
Replace them if you notice:

• Liquid or odours escaping from the cap area

• Cracked, flattened, or sticky rubber

• Difficulty tightening or sealing the cap properly

Q: Are these seals difficult to replace?
Not at all. Simply remove the old seals from the cap, clean the groove, and press the new ones into place. No tools required.

Q: Why are two seals included?
Thetford recommends replacing both cap seals at once for even pressure and optimal sealing.