4" Tri-Clamp Screw-On Sight Glass Kit

Screw-On Sight Glass Kit in 4 inch with housing made of stainless steel, which is compatible with all of our products with 4 inch tri-clamp flange connection.

The kit consists of:

• Housing made of stainless steel
• Special extra thick lens made of heat resistant borosilicate glass
• Special gasket made of silicone
• Special gasket made of PTFE
• Screw-on ring made of stainless steel

Please be aware that although borosilicate glass is very robust, it can have asperities and air entrapment in the glass, as well as asperities by chipping at the edges due to the difficult processing. This is not a product flaw, but a characteristic caused by production. Please handle items made of borosilicate glass with utmost care, do not clamp them too tight, and do not put them down onto hard surfaces! All glasses are carefully inspected by us before delivery and singled out if deviant. We can not accept subsequent complaints.