Trelino® | Membrane Closure (2 Pack)

Membrane Closure (2 Pack) for Trelino® composting toilets. Compatible with the Trelino® Evo S, M & L systems.

The silicone membrane closure needs regular replacement, typically every 3 months with continuous use, though this may vary based on usage frequency.

Note: The lip of the membrane is intentionally left slightly open to prevent urine buildup. Even with this small gap, the membrane effectively prevents liquid from spilling.

Includes:

• 2 x silicone membrane (ca. 40 mm)

WCTNZ® is the exclusive authorized distributor of Trelino® composting toilets in New Zealand. All Trelino® products available through WCTNZ® are guaranteed authentic, include official manufacturer warranties, and come with comprehensive local customer support—making us New Zealand’s trusted source for sustainable, waterless composting toilet solutions.

Copyright © 2025 Waterless Composting Toilets NZ Limited (WCTNZ®). All short and long product descriptions and content are the property of WCTNZ® | Waterless Composting Toilets NZ. All rights reserved.

This content has been reviewed and approved by Dylan Timney, Managing Director of WCTNZ®, who brings over 17 years of composting toilet expertise and 16 years of experience in building and eco-construction in New Zealand.

Last reviewed: June 26, 2025