Air-locks (for bungs with 17 mm hole): Speidel, £4.20
or £5.40 with the small bung.
Winegrowers Supplies
- Air-locks and Bungs
Prices shown in this section are inclusive of Vat.
Air-locks (for bungs with 17 mm
hole): Speidel, £4.20
or £5.40 with the small bung.
Rubber bungs: 
For 25 litre Carbuoys and Italian variable-capacity tanks:-
Kusto conical bung 45/30x60high mm with 17 mm hole for air-lock,
£5.40
Grey rubber conical bung 38/31x35 mm without hole for use
post-fermentation, £3.60
For 54 litre Carbuoys:-
Kusto conical bung
60/35x80high mm, with 17 mm hole for air-lock, £6.00