tank topper airlock riser

The exclusive TankToppr™ Airlock Riser is the best way to prevent leaking and excessive headspace in your variable capacity tank. The riser allows you to completely fill your VC tank while the small headspace provided by the riser allows for seasonal expansion and contraction of the wine without reaching your airlock. Not included: #9 stopper and airlock or #9 silicone breather bung.



  • Threads - outside: 40 mm
  • Threads - inside (MINIMUM HOLE SIZE):  38 mm
  • Total "Rise" from lid after installation: 55 mm
  • Stopper size needed: #9
How to Use

To avoid breaking these plastic fittings, we recommend using TWO white gaskets, one on top and one on bottom of the stainless lid, and lubricate the top gasket with some thick food-grade gel such as petrol gel.  With the extra gasket and gel, you won't have to crank on the nut as hard to make a seal, and you will reduce your risk of breaking the plastic.



We are not happy unless you are. To ensure your satisfaction, we offer our guarantee backed by our promise of a full store-credit refund on any unsatisfactory product or delivery---no need to ship anything back. Simply email us at info@thebeveragepeople.com if the need to claim this guarantee should arise.

Pickup Locations Available for This Item

The Beverage People Warehouse, Santa Rosa.

Fulfillment occurs Tues - Sat, 11 AM - 5 PM. We aim to fulfill orders in 2 hours or less, whenever possible.

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Shipping Details
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How to Return Goods for Refund

All our supplies are guaranteed for one year. Request for refunds occurring more than 30 days after the date of purchase on non-defective goods may be granted as a store credit if the goods are returned in their original condition. Yeast is perishable and should be refrigerated on arrival. No refunds are allowed on sales of living organisms such as yeast and bacteria.


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Excellent service 02/22/2022
By David Sylling
Shipped same day as I submitted my on line order. Staff very helpful with questions.