Sight glass of zenit is produced by CNC.

• This model connect with tube or pipe by nut.
• Zenit Sight glass has 5 size include 1/4″,  3/8″, 1/2″ , 5/8″ and 3/4″ flare available on your request.
• There is humidity testing paper inside the sight glass body and indicates dry/caution/wet status by different color .
• Packing is 1pcs in 1 box and how many boxes per carton according to products