新加坡采购需求：烧结金属过滤器、多孔金属过滤器、湿度探头、湿度传感器探头、湿度变送器、烧结过滤器

I am reaching out to request a quote for a couple of diffuser units that I need. Specifically, I am looking for two different lengths and specifications, with one option being longer than the other. Both diffusers should have a 0.5 Micron rating. I would appreciate it if you could specify the quantity for each length in your response. In addition to the pricing details for the diffusers, could you also include the shipping cost to Thailand in your quote? This will help me assess the total budget for this purchase. Thank you in advance for your assistance and prompt response!