Thetford Porta Potti 335 Marine Toilet w/Hold Down Kit

  • $ 128.58
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Porta Potti 335 Marine Toilet with Hold Down Kit

The Porta Potti 335 with the Hold Down Kit is a super compact portable toilet which is perfect to use on boats! The toilet is delivered with a special ‘hold down kit’ to attach the toilet to the floor of your boat, wherever you want. One simple action releases the toilet.


  • Durable, easy to use and easy to clean
  • Contemporary styling with integrated seat and cover design
  • Ergonomic carrying handle
  • Exclusive, rotating pour-out spout
  • Deodorant sample included
  • Bellows or Piston pump flush
  • Sealed valve keeps odors in holding tank
  • Easy-to-read Level Indicator tells when it’s time to empty (available with piston flush only)
  • Hold down kit secures toilet to deck
  • Optional MSD (not interchangeable with pour-out spout)
  • 1-year warranty



Toilet consists of 2 sections: the upper section is a combined flush water tank and toilet bowl with detachable seat and cover. The lower section is the waste-holding tank. See more details in product brochure, website or user manual.

The Porta Potti 565 differs not only in its unique design from the Porta Potti 335, it also distinguishes itself with its new shape, seating height and unique features (e.g. toilet roll holder, integrated control panel, level indicator waste-holding tank and flush-water tank).

The Port Potti Marine 365 has an optional MSD. A Marine Sanitary Device (MSD) allows toilet to be plumbed for direct overboard, dockside pump-out or remote tank discharge)

Often a consumer is not aware of the use of the vent button. The vent button should be used while emptying the waste holding tank. To empty the tank without splashing, press and hold the vent button with your thumb while the pour out spout is pointing downwards.

The toilet can be used with the blade open or closed. This is a personal choice of the user of the toilet. To open the blade, pull the blade handle as described in the user manual. Make sure that the blade is completely closed after use.


    Brochure (pdf)

    User Manual  (pdf)

    Thetford Porta Potti 335 Marine Toilet w/Hold Down Kit

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