KEY ADVANTAGWE OF OUR FRP VESSELS- Pressure sustaining of 12 bar:- 100% of the vessels are tested for sustaining pressure up to 12 bar. Vaccume sustaining of 5mm hg negative pressure:- The pressure vessel is designed for maximum negative pressure of 5â?? hg vacuum below atmospheric pressure. Aluminum thread:- Aluminum threads provides a huge advantage over plastic threads, due to harmonic action by pump, sometimes, in longer run, plastic threads gets damaged. But our vessels has aluminum thread so it gives a great grip and solidity also it is very efficient for longer run than plastic thread. CAPACITY- 451 Litres, 708 Litres, 999 Litres, 1306 Litres. DIMENSIONS- 24 inch X 72 inch, 30 inch X 72 inch, 36 inch X 72 inch, 42 inch X 72 Inch. OPENING- 4 inch OPENING (TOP & BOTTOM). COLOR- Blue, Natural, Green.