"Urinometer" Level Indicator for Composting Toilet Trelino® Evo Select Trelino toilet size:For Evo S 3 gallon - square

3 gallon - square

black (Fits Evo L and Origin L)

Made of sturdy sheet steel

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

"Urinometer" Level Indicator for Composting Toilet Trelino® Evo Select Trelino toilet size:For Evo S 3 gallon - squareKnow 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.