F7 Medium Efficiency Air Filter(Aluminium Frame Regular Specification: 592*592*600mm-6 p Delivery Period: 10 working days. 1. The above specifications are not the only specification of our products, we could produce different kinds of products according to your needs. 2.The way of packaging is pallet+carton+wrapping film, if you need dust-proof bag, we could also provide, or we could also customized packaging according to your needs. We can always guarantee the best -quality with reasonable prices which could make more profits fo you, really hope to be friends with you and welcome you to our company at anytime. 18641328719 is my Wechat and Tel, this is Alice Tan, tanlong0327@163.com iy my e-mail