Thetford Porta-Potti 550P Toilet
Thetford Thetford
  • Thetford Porta-Potti 550P Toilet
  • Thetford Porta-Potti

Thetford Porta-Potti 550P Toilet

This durable large capacity Porta Potti allows maximum uses before emptying the 5 gallon holding tank. The high gloss finished 550P features a piston pump for positive water pressure flush rinsing of bowl. Exclusive no-splash pour spout (model 92853 only) keeps the process of emptying to household sewer systems clean.

Built in deodorant storage with sealed valve to keep odors inside the holding tank keeps smell to a minimum when compared to traditional holding tanks systems. Easy to read level gauge let's you know when nearing full capacity. The 550P features a removable lid and seat for easy cleaning.

THE-92856 - includes hold down kit. THE-92853 - does not include hold down kit (THE-92922).

IN STOCK - Available for pickup
$146.06 / ea
 The item was added to your wishlist.
 The item was added to your shop cart.
Tech Spec Product Info User Generated Content

Thetford Porta-Potti 550P Toilet

  • Refreshed, modern appearance
  • Cleaner seat and cover design
  • More-ergonomic Carrying Handle
  • Lid Latch now standard
  • Redesigned Valve Handle, Fill Cap & Pump
  • Exclusive, rotating Pour-Out Spout
  • Fresh Water Tank: 4.0 gallons
  • Waste Water Tank: 5.5 gallons
  • Includes hold down kit for securing to deck


BRAND: Thetford
Type: Toilets
4.3 3

Good unit. lousy attachment


They make a few other models that Jamestown does not carry that seem to attach better. This ones attachment brackets seem pretty weak.


Lake Champlain

Jewel of a John


Installed in 26ft Sailboat using the included hardware to secure unit to the floor. Got caught in a squall the next day; knocked the boat on its side- everything went everywhere, but the toilet didn't budge. Unit includes waste tank down pipe for connection to thru-hull fittings for use with evacuation/pump-out stations. This model is suited for marine use (pump-out; it does not include the standard swing-away pour spout to empty the waste tank. It does include a cap that replaces the down pipe on the waste tank that would enable the waste tank to be transported off the boat without slopping stuff around and then conceivably be emptied by pouring out.




A new head in the boat!


Very efficient, replaces a convential "head" in a sailboat. No more holding tanks to pump out.


Oriental, NC


Thetford Porta-Potti 550P Toilet



Related Items:
TotalBoat Blogs Live Tech Support