CompoCloset S1 Dry Flush Sealing Toilet with Urine Diverter

Name: CompoCloset S1 Dry Flush Sealing Toilet with Urine Diverter
Brand: CompoCloset
SKU: S1
Price: 1500.0 USD
Availability: InStock

$1,500.00 USD

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Overview

New pre-orders ship in August. The CompoCloset S1 is a battery-powered dry flush sealing toilet with a built-in urine diverter that keeps liquid and solid waste separate. By sealing only solid waste, the S1 helps reduce bag use compared with traditional sealing toilets that bag everything together. It is designed for off-grid use in vans, RVs, boats, and compact spaces where water-free operation and simple waste handling matter.

The urine diverter routes liquid waste into a removable bottle, while the internal heat-sealing system discreetly seals solid waste out of sight. An LED urine level indicator helps signal when the urine bottle is full, and sturdy side handles make the unit easier to move when needed. The toilet includes one cartridge liner of bags to get started.

Important Info

The S1 uses no water. The heat sealing system runs on a rechargeable 12v Li-ion battery, and the urine level indicator uses a 9v battery, not included. One cartridge liner of bags is included.

Key Features

Separating Sealing System: Built in urine diverter keeps liquids and solids separate, so only solid waste is sealed and bagged.
No Water, No Plumbing Needed: Designed for dry operation without the need for water hookups or black tank plumbing.
Rechargeable Battery Powered Sealing: The internal heat sealing system operates on a rechargeable 12v Li-ion battery.
LED Urine Bottle Alert: Integrated LED indicator lets users know when the urine bottle is full.
Compact and Portable for Off Grid Use: Small footprint, sturdy side handles, and separate waste containers make it easier to use in mobile and off grid setups.

What is included

S1 Dry Flush Sealing Toilet
One cartridge liner of bags

How it works

Liquid waste is directed into the urine bottle, while solid waste is sealed with the battery-powered heat sealing system. This separation helps reduce odor, limits unnecessary bag use, and keeps waste out of sight until emptying.

Power and refill details

Heat sealing mechanism: rechargeable 12v Li-ion battery
Urine level indicator: 9v battery, not included
Battery charge: up to 50+ flushes
Estimated refill cost: $15 to $20 per roll
Estimated cost per use: about $0.50 per flush

Technical Specs

Spec	Details
Dimensions	17.0 in D x 15.2 in W x 16.5 in H
Solids Container Capacity	1.5 gallon, 15.7 liter
Urine Bottle Capacity	1.7 gallons, 6.4 liter
Weight	Approx. 29 lbs, 13.2 kg
Body Material	ABS plastic body
Hardware Materials	Stainless steel hinges, waterproof connectors
Power for Sealing System	Rechargeable 12v Li-ion battery
Power for Urine Level Indicator	9v battery, not included
LED Indicator	Alerts when urine bottle is full
Liquid Use Guidance	Up to 20 liquid uses before emptying
Operation	No water required
Included Starter Supply	One cartridge liner of bags

Resources and Downloads

Quick Start Guide - 1 Dry Flush Sealing Toilet (Coming Soon)

Frequently Asked Questions (click to expand)

1. What makes the S1 different from a traditional dry flush toilet?

The S1 uses a built in urine diverter to keep liquid and solid waste separate, so only solid waste is sealed and bagged.

2. Does the S1 need water or plumbing?

No. The S1 is a water free toilet and does not require water to operate.

3. What powers the toilet?

The heat sealing mechanism runs on a rechargeable 12v Li-ion battery. The urine level indicator uses a 9v battery, which is not included.

4. How many uses can the urine bottle handle before emptying?

The product information states up to 20 liquid uses before the urine bottle needs to be emptied but it depends how large or small each use is as it's a 1.7-gallon bottle.

5. What comes with the toilet?

The S1 includes one cartridge liner of bags for getting started.

6. What are the toilet dimensions and weight?

The S1 measures 17.0 inches deep, 15.2 inches wide, and 16.5 inches high, and weighs about 29 pounds.

7. What bag options are available?

The product information references compostable bags and recycled plastic bag options.

8. How long does the battery charge last?

The stated battery charge lasts for up to 50+ flushes.

9. What are the estimated refill costs?

Estimated refill cost is $15 to $20 per roll, or about $0.50 per flush.

10. What warranty is listed for the S1?

A two-year warranty on manufacturing defects.

Get a CAD-Verified Roof Layout

We understand that every van setup is unique. That's why we offer CAD-verified roof layouts for customers who have purchased or plan to purchase an Orion roof rack - so you can maximize space and fit exactly what you need, where you need it. Request a layout here ›

Shipping & Returns

We offer free shipping to the lower 48 states on all products. Orders shipping to Alaska, Hawaii, Canada, or international destinations may have additional shipping charges calculated at checkout or quoted separately. Local pickup is also available at our McMinnville, Oregon warehouse by appointment.

Most purchases can be returned within 30 days of purchase if they are in new, resalable condition with original packaging. A 20% restocking fee applies; return shipping is the customer’s responsibility, and some items are final sale or not eligible for return. For full details, please see our Shipping Policy and Return Policy.

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