Speidel Oversized Replacement Airlock FE781
Compare the matching replacement airlock when its chamber or hood, rather than the stopper, is the missing component.
Read the differences ↗Speidel · Airlocks & vessel parts
Speidel Replacement Drilled Airlock Stopper FE780
The drilled replacement stopper for the Speidel airlock connection, sold separately from the airlock.
Price & purchase ↓
The equipment in use
How this item fits your brewing setup
Choose this part when the stopper in your Speidel vent connection needs replacing while the airlock itself can be reused. The tapered outside fits the appropriate vessel opening, and the center passage receives the airlock stem. It is the connection piece between those parts, not a complete airlock kit.
The selected description gives a height of 1-3/8 in, an upper diameter of 1-3/4 in, a lower diameter of 1-7/16 in and an inner passage of 11/16 in. Keep those different measurements separate when comparing the part with your existing stopper. A similar outside shape does not establish the same stem opening.
The matching dealer reference is FE780. Its product description identifies it as the replacement rubber airlock stopper for Speidel plastic tanks and explicitly excludes the airlock. Compare FE781 if the missing part is the oversized airlock instead; replacing the stopper alone does not replace that chamber and hood.
Color is not a reliable way to identify this replacement. The selected listing says the design and color have changed from the earlier red or orange version, and that supplied color may vary. Match the replacement application and connections rather than buying another generic stopper merely because its color resembles the old one.
The selected reference
Specifications & supplied details
- Part role
- Drilled replacement airlock stopper
- Supplier reference
- FE780
- Material
- Rubber, selected description
- Height
- 1-3/8 in
- Upper diameter
- 1-3/4 in
- Lower diameter
- 1-7/16 in
- Inner passage
- 11/16 in
- Supplied color
- May vary
- Airlock
- Sold separately
Before and during use
Advice for this reference
Before you choose
Check both the outer taper and the inner airlock-stem passage against the existing connection.
Also check
Use the dedicated replacement reference rather than color or nominal vessel capacity alone.
Connections & scope
Fit and useful limits
- The stopper does not include the airlock or a new fermenter.
- No generic stopper-number substitution, exact rubber compound or temperature rating is established.
- Listed passage size is not a claim that every airlock stem will fit.
Questions about this product
What else should you know?
Can I keep my existing airlock?
This reference replaces the stopper alone. Reuse a serviceable airlock only if its actual stem and the replacement connection are appropriate for the same setup.
Must the replacement be the same color as my old stopper?
The selected offer says color may vary and mentions a change from earlier red or orange versions. Identify it by application and connections instead.
Is a generic number 10 stopper the same connection?
The FE780 passage is listed as 11/16 in, while the number 10 stopper in this catalogue lists 0.39 in. Compare both the bore and outer taper; the generic stopper number does not establish a Speidel replacement fit.
A different choice for a different need
Compare the relevant alternatives
Acellegic Number 10 Drilled Rubber Stoppers, Six Pack
Compare generic number 10 drilled stoppers only if their different dimensions suit a different vessel connection.
Read the differences ↗Continue choosing