Major Airlock
Food-grade Plastic
Out of stock
Large chamber-style airlock, this fermentation trap fits onto a bored rubber, grommet or cork bung.
Fermentation Trap
A larger version of the junior airlock and is much quieter than the bubbler airlock.
Half fill the airlock with clean water, this will allow fermentation gases to escape whilst preventing airborne contamination.
Alternatively, you can fill it with a weak solution of sodium, potassium metabisulphite or a neutral spirit such as Vodka.
Similar to the airlock found with the Fast Ferment Conical Fermenters.
Dimensions
- Height: 120mm approx.
- Width: 40mm approx.
Free standard delivery on eligible UK mainland orders of £70 or more. Regional exclusions and surcharges apply. See full delivery details.
Royal Mail Tracked
Tracked 24 and Tracked 48 for lighter parcels.
£3.95–£5.95 depending on weight and service.
Delivery times are estimates after dispatch.
Tracked Courier
Heavier orders are normally sent by tracked courier.
Standard UK mainland courier service: £6.95.
Next-working-day delivery after dispatch is an aim, not a guarantee.
Store Collection
Click & Collect from our Plymouth shop – FREE.
We'll email when your order is ready, usually within one working day.
Shipping charges depend on order weight and destination. Regional surcharges may apply; prices and services are confirmed at checkout. Delivery times are estimates, not guarantees.
