Suits Gen 4 and Gen 3 BrewZillas, Digiboils and older model Robobrews, for both 35L and 65L models.

Designed to be extremely sturdy when using heavier stills or off-center steam condenser units. Now you can watch your wash boil and see if it's foaming or about to puke. If you are brewing beer indoors you may want to use a steam condenser lid set, without having to take off the entire lid to do hop/salt additions, simply remove the 3" Sight Glass and throw in (take care when hot).

PPSU is an excellent choice for components that are exposed to high temperatures (up to 200°C) and corrosive media due to its exceptional chemical resistance. As well as being extremely impact resistant.
We have decided to use this type of plastic because it also has superior thermal and mechanical properties with the added benefit of being transparent. This will allow us to injection mold intricate parts that would have been near impossible to do in stainless steel or lab-grade glass. Because this is a very unique type of plastic, it comes at a much higher cost per kg than other industrial plastics. So much so that it costs more than stainless steel.

Specifications 35L version

- Thicker Silicone O-Ring for a tighter seal
- Top Tri-Clamp Port: 2 Inch
- 3 Inch Sight Glass Ferrule
Includes 3 Inch PPSU Sight Glass Disc, 3 Inch Tri-Clover Clamp and 3 Inch Tri-Clover Silicone Seal.

35L steam lid is compatible with - 
Express 50cm Copper Tri-clamp Extension , 
Pure distilling copper extension, and Copper Extension | 2" BSP Female
t500 boiler, Digiboil 35L or the Grainfather G30 making this lid a great choice for a reflux still.

Specifcations - 65L version

- Thicker Silicone O-Ring for a tighter seal
- Top Tri-Clamp Port: 4 Inch
- 3 Inch Sight Glass Ferrule
Includes 3 Inch PPSU Sight Glass Disc, 3 Inch Tri-Clover Clamp and 3 Inch Tri-Clover Silicone Seal.

The 65L lid is also a great way to step up your distillery and is compatible with the below distillation attachments for either a Alembic pot still, or a reflux still!
T500 Alembic Attachment Kit
T500 Reflux Attachment Kit

65L steam lid compatible with -
65L Digiboil
 4" sight glass
4" Concentric reducer