o. Name Material
1 Base FRPP.PVDF.CPVC.UPVC.PPH
2 Hex nuts Steel
3 Double headed stud Steel
4 Glass Glass
5 Washers EPDM,FPM
6 Base FRPP.PVDF.CPVC.UPVC.PPH
https://www.plasticpipevalve.com/product/plastic-valve-series/sight-glass/cpvc-sight-glass.html