Portable Marine Toilets & MSD Sanitation Units

This collection of portable marine toilets provides reliable, compact, and easy‑to‑install sanitation solutions for boats, RVs, and off‑grid environments. Featuring 29 models from trusted brands like Dometic, Thetford Marine, and Commodore, these toilets offer durable construction, secure mounting options, and efficient waste management for every type of vessel.

Choose from 2.5‑, 2.6‑, and 5‑gallon waste tank capacities, with both standard and MSD (Marine Sanitation Device) versions available for direct pump‑out compatibility. Popular models include the Dometic 964, 965, 972, 974, 975, 976, and 962/966 series, as well as the Thetford Porta Potti 135, 335, 345, 365, 550P MSD, and 565E Curve. For premium durability, the Commodore CM‑3‑18PT offers a rugged injection‑molded design with an 18L (4.75‑gallon) capacity.

These portable toilets are engineered for low odor, easy cleaning, and secure installation using included hold‑down kits or mounting brackets. Whether outfitting a small center console, sailboat cabin, cruiser, or RV, this category provides dependable sanitation options for every budget and space requirement.

Key Features of Our Portable Marine Toilets

• 2.5–5 gallon waste tank capacities for all vessel sizes
• Standard and MSD pump‑out compatible models
• Durable construction from Dometic, Thetford, and Commodore
• Secure mounting brackets and hold‑down kits included on many models
• Low‑odor, easy‑flush designs for comfort and hygiene
• Compact footprints ideal for small boats and tight cabins
• High‑capacity options for extended trips
• Lightweight and easy to transport for multi‑use applications
• Smooth surfaces for fast cleaning and maintenance
• Reliable performance for boats, RVs, and off‑grid setups

FAQs

1. What size portable toilet is best for my boat?

Smaller vessels typically use 2.5–2.6 gallon models, while cruisers and overnight boats benefit from 5‑gallon units for longer intervals between emptying.

2. What is the difference between a standard portable toilet and an MSD model?

An MSD portable toilet includes fittings for deck pump‑out, making it compliant with marine sanitation regulations in many areas.

3. Are mounting brackets necessary for portable toilets on boats?

Yes — mounting brackets or hold‑down kits prevent movement underway and are included with many Dometic and Thetford models.