Separation insert for composting toilets – clean, practical, durable

The separator insert —also known as the separator bowl , separator , or separator —is the heart of every composting toilet. It ensures that urine and solids are reliably separated : Liquids are directed forward into a separate outlet, while solids simply fall down into a collection container.
This clever separation prevents unpleasant odors, as dry solids have virtually no odor . Clean urine can be easily disposed of—for example, via the sewer connection or as natural plant fertilizer in the garden or in nature.


Well-thought-out design for easy installation

Our goal was to develop the best and most affordable separator insert .
The design is smooth, with no hard-to-reach corners or edges, making it particularly easy to clean. The urine outlet is shaped to perfectly fit standard plumbing components such as hoses, sewer pipes, or a silicone odor trap.

A special highlight: the "Roman oval" shape. This allows the cutout for installation to be easily marked with a compass and ruler – without a template and without a CNC machine. Ideal for DIY enthusiasts, campers, and anyone who wants to build their own composting toilet.


Who is the divider insert suitable for?

Our separation insert is perfect for anyone who wants to create their own composting toilet – whether for campers, tiny houses, boats, or garden sheds.
Thanks to its attractive price, high quality and timeless design, it is also popular with:

  • DIY and craftsmen
  • Manufacturers of composting toilets
  • Vehicle and camper outfitters
  • Operators of ecological construction site toilets

Easy-care & durable

The separator insert is maintenance-free , robust and has no moving parts.
All you need to clean is a mild soap solution and water – this makes it easy to remove residues, dust and water stains.
We recommend avoiding aggressive cleaning agents or strong chemicals. After cleaning, simply wipe dry with a soft, lint-free cotton cloth—done.


Technical data

  • Dimensions: 32 × 43 cm, height approx. 15 cm
  • Material: ABS plastic – smooth, shatter-proof, resistant to many chemicals and diluted acids
  • Recycling: 100% recyclable, no material mix


Color variants

Currently available in five modern colors: Anthracite , Sky , Rose , Mint and Cool Grey .
Additional colors are planned and will be produced upon demand.


💡 Conclusion: Our separation insert is the perfect basis for a low-odor, hygienic and sustainable separation toilet – easy to install, easy to clean and durable in use.

Logo Manufaktur 4.0

We are a family business from the Rhön region, developing products for camping, the outdoors, and self-sufficiency – with passion, craftsmanship, and responsibility. Instead of mass production, we focus on quality, sustainability, and regional production.