Thetford Marine Potti 135 Marine Toilet w/Hold Down Kit Porta. The toilet is compact convenient and designed with many marine-specific features. It is easy to use and easy to clean and is durable easy to use and easy to clean. As an added bonus it is easy to carry and stow making it an easy add-on to nearly any boat. There is a sealed valve that keeps odors in the holding tank and an easy-to-read Level Indicator that tells you when it is time to empty (applicable with piston flush only). You can also purchase a hold down kit which is a great feature to secure the toilet to the deck. There is also an option for an MSD (not interchangeable with pour-out spout) that will deodorize your portable toilet making it more sanitary. There is also an optional hold down kit which secures the toilet to the deck and adds weight for heavier carry. There is nothing finer than a toilet you can count on in challenging circumstances. Yout gonna love this toilet. Specifications for Thetford Marine Porta Potti 135 Marine Toilet w/Hold Down Kit: Manufacturer: Thetford Marine Color: White Features of Thetford Marine Porta Potti 135 Marine Toilet w/Hold Down Kit 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 its 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 Package Contents: Thetford Marine Porta Potti 135 Marine Toilet w/Hold Down Kit Thetford Marine 92861: Potti 135 Marine Toilet w/Hold Down Kit Porta