Stainless still / steam-condenser lid with a 4" Tri-Clamp top port and a clear 3" PPSU sight glass — for brewing systems and kettles with a Ø395–410 mm opening.
Will it fit? One measurement decides. This lid seats on the kettle rim, so the only number that matters is your system's opening diameter — not its volume. It fits brewing systems and kettles with a Ø395–410 mm opening. Direct match: the BrewTaurus B70L and B80L PRO Brewing Systems — both have a Ø400 mm opening. Measure the inner rim of your kettle — if it's in the range, the lid fits.
Brewing on the B80L PRO? Its stock lid already carries a 2" TC steam port for the condenser kit — this lid is the upgrade that adds the 3" PPSU sight glass and the 4" still port on the same Ø400 mm seat.
The reinforced dished lid takes the weight of a larger still column or steam condenser without flexing, and the sight glass lets you follow the boil and make additions without lifting it off.
Key points
- 4" Tri-Clamp top port — mounts a larger pot still, reflux column or steam condenser.
- 3" PPSU sight glass — watch hot-break and head off foam-overs in real time.
- Removable sight-glass disc — add hops or salts mid-boil through the port without removing the lid.
- Reinforced build — stable enough for heavier, off-centre column loads.
- Tight seal — extra-thick silicone gasket clamps leak-free.
To run the 2" Steam Condenser Kit on this lid, add the 4"→2" Tri-Clamp reducer — it steps the 4" top port down to the kit's 2" connection.
What is PPSU?
PPSU (polyphenylsulfone) is a high-performance engineering polymer that stays clear and dimensionally stable to ~200 °C, shrugs off brewery acids and caustics, and takes impact far better than glass — so the sight glass won't craze or shatter on a busy brew day.
What's in the box
- Stainless lid Ø400 mm (4" TC top port · 3" sight-glass port)
- 3" PPSU sight-glass disc
- 3" Tri-Clamp + silicone gasket for the sight-glass assembly
Which lid fits your kettle?
| Lid | Opening Ø | Top port | BrewTaurus match |
| B40L Sight Glass Lid | 340–355 mm | 2" TC | B40L |
| K40 Steam Condenser / Still Lid | 345–355 mm | 2" TC | K40 |
| B70L & B80L PRO Sight Glass Lid | 395–410 mm | 4" TC | B70L / B80L PRO |
| K80 Steam Condenser / Still Lid | 445–455 mm | 4" TC | K80 |
| K200 Steam Condenser / Still Lid | 595–605 mm | 4" TC | K200/K220 |
Specifications
| Fits | Brewing systems & kettles with Ø395–410 mm opening (direct match: B70L & B80L PRO) |
| Top port | 4" Tri-Clamp ferrule |
| Sight-glass port | 3" Tri-Clamp with removable PPSU disc |
| Lid material | 304 stainless steel |
| Sight glass | PPSU, clear, rated to ~200 °C |
| Seal | Silicone gasket |
Fit check: The opening decides — this lid fits Ø395–410 mm kettle openings (the B70L and B80L PRO share a Ø400 mm opening). Volume alone doesn't determine fit: kettles of the same litre size come with different openings, so measure the inner rim of your kettle before ordering.
Building a still or steam-condenser setup? Browse the full Sight glass range and our Brewing systems.
Complete the installation: add the Steam Condenser Connection Kit — 2 m silicone drain hose, 2 m EVABarrier water line and the duotight 3/8" joiner. Everything between your tap, the condenser and the drain, for €29.95.