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Thetford 92856 Porta Potti 550P MSD Portable Toilet with Hold-Down Kit

Manufacturer

Thetford

<h3>Thetford: Over 60 Years of Mobile Sanitation Innovation</h3><p><strong>Thetford</strong> has spent more than six decades solving one of mobile living's most essential challenges: reliable, clean, and odor-free sanitation on the road, on the water, and off the grid. A recognized leader in RV and marine toilets and sanitation solutions, Thetford has built its reputation by engineering products that work quietly and dependably in the demanding environments of RVs, boats, trucks, and campsites.</p><p>Founded in 1963 by Frank Sargent and his two sons, the company began with a simple but transformative idea: make holding tank systems cleaner and more convenient for RV owners. That spirit of practical innovation has never stopped. The brand pioneered the first slide-action valve for RV holding tanks, the first low-profile RV toilet, the first polyethylene holding tank, and the first battery-powered portable toilet, among many other milestones. Today, Thetford is the world's leading manufacturer of mobile sanitation products for the RV, marine, camping, and truck markets.</p><h3>Portable Toilets: The Porta Potti® Legacy</h3><p>Perhaps no single product defines Thetford more than the <strong>Porta Potti®</strong>. Thetford is the inventor of the world-renowned original portable toilet: Porta Potti®. These <a href="/7608-thetford-toilets-portable-201080">portable toilets</a> are engineered for simplicity and hygiene — hand-carried, fresh-water-flush, and self-contained, they have a multitude of uses across camping, boating, overlanding, and emergency preparedness. Whether you need a compact unit for a weekend trip or a full-featured model for extended travel, Thetford's portable toilet lineup covers every need.</p><h3>Fixed RV &amp; Marine Toilets</h3><p>Beyond portable units, Thetford manufactures a comprehensive range of <a href="/7608-thetford-toilets-manual-electric-fixed-mount-parts-202654">fixed-mount manual and electric toilets</a> designed to be permanently installed in RVs, boats, and trucks. These lightweight, low-water-use toilets are built to be permanently mounted in RVs, boats, or trucks, combining water efficiency with reliable performance. Thetford's Tecma line, in particular, brings premium marine-grade quality to onboard sanitation. Tecma is the marine sanitation product line of Thetford, and for over 20 years the Italian brand has been regarded worldwide as the manufacturer of the finest china toilets with beautiful styling.</p><h3>Macerator &amp; Waste Pumps</h3><p>Completing the sanitation system, Thetford offers a robust lineup of <a href="/7608-thetford-macerator-waste-pumps-200645">macerator and waste pumps</a> that grind and transfer waste efficiently — a critical component for any fixed marine or RV toilet installation. The macerator process is tested and proven for many years of reliable performance. These pumps integrate seamlessly with Thetford's toilet systems to keep waste moving quietly and cleanly, regardless of the vessel or vehicle layout.</p><h3>A Complete Ecosystem for Mobile Living</h3><p>What sets Thetford apart is not just any single product, but the breadth of its ecosystem. Thetford prides itself on creative design and is committed to the production of high-quality products that exceed the needs of a demanding marketplace. From holding tank treatments like the legendary Aqua-Kem® to sewer hose systems and toilet care chemicals, every Thetford product is designed with the real-world mobile lifestyle in mind. Thetford is a privately held company with eight manufacturing facilities in four countries, ensuring consistent quality and global parts availability wherever your travels take you.</p>

Part Number

92856
06/20/2036 11:43 PM
Sale Price

$199.95

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Product Details

The Thetford Porta Potti 550P MSD combines portability with permanent installation capability, making it ideal for RVs, boats, and marine applications requiring a marine sanitation device (MSD) compliance. This portable toilet features a modern design with a sleek seat and cover, ergonomic carry handle, and convenient lid latch for secure transport and storage.

Key Features:

  • Convertible design works as portable or permanent installation with included hold-down kit
  • MSD fitting allows for pump-out capability at marine waste stations
  • Piston pump flush system delivers efficient, powerful flushing performance
  • 5.5-gallon holding tank and 4.0-gallon freshwater tank provide extended use between dump cycles
  • Approximately 56 flushes per full freshwater tank for minimal refilling
  • Sealed valve system locks odors in the holding tank
  • Easy-to-read level indicator shows when tank needs emptying
  • Removable seat and cover simplify cleaning and maintenance
  • Redesigned valve handle, fill cap, and pump for improved ergonomics
  • Durable plastic construction in white and gray finish

Compact dimensions of 16.5" H x 15" W x 16.5" D make this toilet easy to fit in tight spaces. Backed by a one-year manufacturer warranty.

Products specifications

Color

White/Gray

Capacity

5 1/2 Gallons

Dimensions

16 1/2" Height x 15" Width x 16 1/2" Depth

Features

Convertible to Permanent

Size

Compact

Type

Portable

Warranty Details

One Year

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