"Urinometer" Level Indicator for Composting Toilet Trelino® Evo Select Trelino toilet size:For Evo S this membrane stays put and

this membrane stays put and keeps your space clean and smelling fresh

2 x silicone membrane (ca

black (Fits Evo L and Origin L)

The blue tint provides discretion when emptying and keeps away any yellowing that may occur in clear or white canisters

An absolute eye-catcher for your vehicle with great attention to detail

"Urinometer" Level Indicator for Composting Toilet Trelino® Evo Select Trelino toilet size:For Evo S this membrane stays put andKnow at a glance when its time to empty the urine canister with the Trelino Urinometer, the mechanical overflow protection for your Evo composting toilet! Using a floating mechanism, the Trelino Urinometer measures the fill level of your canister. As the liquid rises, the float moves upwards, pushing the signal pin through the urine funnel of the separating insert. Once the canister reaches a critical level, the orange arrow becomes clearly visible.