Clear PPSU disc for any 3" Tri-Clamp sight port — the spare (and the upgrade) for BrewTaurus steam-condenser lids.
This is the clear disc from our sight-glass assembly: seat it in the flanged silicone gasket, clamp it over the 3" ferrule with a 3" band clamp, and you have a window into the boil. It is the exact replacement disc supplied with both Sight Glass Steam Condenser Lids (Ø350 mm & Ø400 mm) — and the missing piece that turns the angled 3" sight port on the K40 / K80 / K220 Dome Lids into a working sight glass (those lids ship without one).
Key points
- Direct replacement — the same disc shipped with the Ø350 (B40L) and Ø400 (B70L / B80L PRO) Sight Glass Lids.
- Completes a Dome Lid — the K40, K80 and K220 Dome Lids have an angled 3" sight port with no glass: add this disc, the flanged gasket and a 3" band clamp.
- Removable mid-boil — pop the clamp and add hops or salts through the port without lifting the lid.
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.
Specifications
| Fits | Any 3" Tri-Clamp sight port (flange Ø91 mm) — all BrewTaurus sight-glass & dome condenser lids |
| Material | PPSU (polyphenylsulfone), clear |
| Temperature rating | ~200 °C — boil-proof |
| Mounting | Seats in a 3" flanged silicone gasket under a 3" band clamp |
| Scope | Disc only — gasket and clamp sold separately |
Complete the assembly: add the 3" Sight-Glass Silicone Gasket and the 3" Band Clamp.
Browse the full Sight glass range and more spare parts · All 3" TC fittings.