Description

CompoCloset S1 Dry Flush Sealing Toilet

Product Description

The CompoCloset S1 Dry Flush Sealing Toilet combines urine diversion with automatic heat sealing to create a clean, waterless waste solution for RVs, motorhomes, tiny homes, boats, campervans, off-grid living, and home use.

Unlike dry flush toilets that bag liquids and solids together, the S1 automatically diverts urine into a separate 1.7-gallon bottle and uses its battery-powered heat sealer only for solid waste. With the push of a button, solid waste is wrapped and sealed out of sight in seconds.

The S1 requires no water, plumbing, or chemical additives. Its rechargeable 12V Li-ion battery delivers 50+ seals per charge, while each liner roll provides approximately 25 flushes. If you run out of liners, the S1 can continue operating as a standard urine-diverting toilet.

Key Benefits

• Separates liquid and solid waste
• Automatically heat-seals solid waste at the push of a button
• Waterless operation
• No plumbing required
• No chemical additives required
• Rechargeable 12V Li-ion battery
• 50+ seals per battery charge
• Approximately 25 flushes per liner roll
• 1.7-gallon urine bottle
• LED urine level indicator alerts you when the bottle is full
• Opaque urine bottle for discreet carrying and emptying
• Choice of compostable or recycled-plastic bags
• Uses up to 80% less bag waste compared with other dry-flush toilets
• Backup mode allows operation as a urine-diverting toilet if liners run out
• Sturdy side handles for portability
• 2-year warranty

Specifications

What's In The Box?

• S1 Dry Flush Sealing Toilet
• Manual
• Sealing Unit
• Solids Bin
• Urine Bottle with one-way valve
• 12V Wall Adapter
• Compostable Bag Liner
• High Barrier Bag Liner
• Battery Box
• Bag Pusher

FAQs

Q: How does the CompoCloset S1 work?
A: Urine is automatically diverted into a separate bottle while solids drop onto the bag cartridge. Pressing the button activates the battery-powered heat sealer, which wraps and seals the solid waste.

Q: How many seals can the S1 provide on one charge?
A: The rechargeable 12V Li-ion battery provides 50+ seals per charge.

Q: How often does the bag liner need to be changed?
A: Each liner roll provides approximately 25 uses. CompoCloset states that for two people with regular use, this is roughly every 1–2 weeks.

Q: How often does the urine bottle need to be emptied?
A: The bottle holds up to 20 liquid uses. The LED indicator alerts you when the 1.7-gallon bottle is full.

Q: What happens if I run out of bag liners?
A: The S1 has a backup mode that allows it to continue operating as a standard urine-diverting toilet until new liners are available.

The S1: Push a Button. Waste Disappears.

Traditional dry flush toilets just mix everything together and hope for the best. The S1 doesn't.

It's the world's first separating, heat-sealing toilet — solids and liquids never touch, never smell, never see the light of day. Push a button, the sealer takes it from there. No composting. No layering. No "eww" moment.

• Urine-diverting = odor-free. Liquids and solids never meet. No sewage smell, ever.
• Automated heat-seal. One button hermetically seals your solids in a bag. No manual wrapping, no exposure.
• Only bag what you need. Because solids and liquids are separated, you're not sealing a bag full of liquid waste — you use fewer bags, which means you spend less on refills.
• 20+ seals per charge. Rechargeable Li-ion battery. No mains power, no wiring, no venting.
• Waterless and chemical-free. No blue juice, no enzymes, no plumbing.

Includes one starter roll of bags. Patent-pending — because nobody else has figured this out yet.

The S1 is available for Pre-Order only. New orders are estimated to ship end August 2026.