坦桑尼亚采购需求：8040 膜壳，反渗透膜壳

I'm reaching out to get a quote for FRP membrane housings that can accommodate four membranes. I'm looking into options with different pressure ratings, specifically 300 PSI and 450 PSI, including all necessary accessories. Additionally, please provide the shipping cost to Tanzania as well. The capacity of my reverse osmosis plant is around 4000 liters per hour, so I'm keen on ensuring that the housings meet that requirement. If you have any specifications or recommendations that could help optimize performance, I'd appreciate your input as well. Looking forward to your detailed quotation!