3″ Tri-Clover Sight Glass (Beaded) Heat-resistant PPSU MaterialUse in conjunction with a 3″ silicone beaded seal and 3″ Tri-Clover Clamp (3P)What is PPSU? 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. 3 Inch PPSU Sight Glass Lens (Natural Colour – Slight Amber)3″ Tri-Clover Sight Glass (Beaded) Heat-resistant PPSU MaterialUse in conjunction with a 3″ silicone beaded seal and 3″ Tri-Clover Clamp (3P)This is a replacement sight glass for the 35L Pro Distillation Lids for BrewZilla / DigiBoil users and the 65L Pro Distillation Lids BrewZilla and DigiBoil UsersWhat is PPSU? 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. PPSU plastics offer: – High operating temperature (180°C) – Good chemical compatibility – Excellent resistance to hydrolysis (suitable for repetitive steam sterilisation) – High rigidity over a wide range of temperatures – Very high impact strength – High dimensional stability – Very good resistance against high energy radiation (gamma and X-rays) – Good electrical insulating properties – Favourable dielectric characteristics