4" Tri Clamp Sight Glass with Silicone Seals and Stainless Steel SS304 Protection around Borosilicate Glass Kit.
This kit comes with everything you need to connect the sight glass to your existing system.
Parts list for this kit are as follows:
Borosilicate glass is known for having very low coefficients of thermal expansion (~3 × 10−6 /°C at 20 °C), making them resistant to thermal shock, more so than any other common glass. This means that they handle heating, cooling and temperature changes much better than other types of glass. The widest part on the body is 5", and it is rated for a Maximum Pressure of 40 PSI.
The tri clamps are single hinge, and are used to connect two 3" tri clamp style connections. The tri clamps are rated for a maximum of 250 psi @ 250° F. They are made from 304 food grade Stainless Steel, and meet all of today's sanitary standards.
The gaskets included in this kit are peroxide cured silicone gaskets, which are great for long term sealing at high temperatures. They are alcohol resistant and will not leach into alcohol or change the flavor in any way.