Trelino Evo L Composting Toilet review
The household-sized version — same system, capacities that suit daily family use.
By Tom Calder
Identical philosophy to the Evo M — urine separation, no water, no chemicals — in the size that makes it a genuine full-time or family option rather than an occasional backup: bigger solids container, bigger canister, domestic seat height. If a composting toilet would be your household's actual plan (off-grid annexe, boat, smallholding, or resilience against a long water outage), size matters more than price here; emptying less often is the entire quality-of-life difference.
ⓘ As an Amazon Associate, PreparedBritain earns from qualifying purchases. We may earn a commission when you buy, or a fee when you request a quote, through our links — it never affects what we recommend. Amazon prices come from Amazon's own product data and show the date and time they were retrieved. Prices at other retailers are checked by us, less often. Prices and stock can change at any time, so always check the retailer's price before you buy.
- Family-scale capacities stretch the emptying routine
- Domestic seat height — no campervan crouch
- Same clean separating design as the M
- £529 is real money for a backup — the M covers occasional use
- Bulkier: needs a permanent ventilated spot
Key specs
| Type | Separating (composting) toilet |
| Capacity | — |
Our rating is a considered spec-and-evidence verdict: we verify every specification against at least two independent sources, re-check the UK price on a schedule where we can track it automatically, and say plainly who a product isn't for. Commissions never change a rating. Read the full methodology →
Alternatives to consider
as of 20 Sep 2026, 12:29 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.Want this cheaper?
Prices for 364 tracked products are refreshed daily — last sweep 20 September 2026. Leave your email and we'll tell you when it drops — nothing else.