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711-M28 Marine Sanitation System


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In stock online.
Model # 374074 | Mfg # 312371103

Product Description

Complete freshwater sanitation system in one self-contained and compact package. This toilet's freshwater operation eliminates the unpleasant odors associated with saltwater systems. An integral vacuum breaker protects your potable water supply. Efficient operation uses only about a pint of fresh water per flush and requires no electricity. The water level and flushing action is controlled by a single pedal. TeflonĀ® seal keeps tank odors from escaping. 9.5gal. capacity.

  • Type: Self-contained manual
  • Material: China bowl/polyethylene tank
  • Port Sizes: 1/2" (13mm) male NPT inlet, 1-1/2" discharge, 5/8" vent
  • Dimensions: 20"H x 18-7/8"W x 18-3/4"D
  • Warranty: One year


711-M28 Marine Sanitation System

Capacity 9 1/2 Gallons
Diameter 1/2" Inlet
1 1/2" Discharge
5/8" Vent
Color Beige
Dimensions 20 5/8" Height x 18 7/8" Width x 19 1/4" Depth
Size Standard
Material China Bowl
Type Self Contained Manual
Warranty Details Two Years


by PowerReviews
Sealand 711-M28 Marine Sanitation System

(based on 3 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars




of respondents would recommend this to a friend.

Reviewed by 3 customers

Displaying reviews 1-3

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(5 of 7 customers found this review helpful)


Much more like a home toilet! Love it!

By Destination anywhere

from Smith Mountain Lake, VA

About Me Advanced

Verified Buyer

Comments about Sealand 711-M28 Marine Sanitation System:

We replaced an original toilet and are very pleased with this one. Ollks so much better than the old one.

(7 of 10 customers found this review helpful)


great for small boat

By steve

from ocean city md

About Me Professional


  • Compact
  • Easy to use
  • Installs Easily
  • Quiet
  • Water Efficient


  • Have to empty frequently
  • Not for multiple people
  • Small holding tank

Best Uses

  • Low Usage
  • Small Boat

Comments about Sealand 711-M28 Marine Sanitation System:

not for use on charter boat or high usage. fills up too quick with multiple people. Great for small boat with occasional usage

(5 of 8 customers found this review helpful)


Very happy overall!!!!

By Gail

from Peoria AZ.

About Me Casual/ Recreational

Verified Buyer


  • Corrosion Resistant
  • Installs Easily
  • Practical
  • Quiet
  • Water Efficient
  • Works Great-easy install


    Best Uses

    • Large Boat

    Comments about Sealand 711-M28 Marine Sanitation System:

    [...] Very happy with [...] the head itself.

    Displaying reviews 1-3

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