A: Generally it is 3-5 days if the goods are in stock.

A: Please confirm with us the model you’ll purchase, and you prepaid the sample fee, after sample tested and qualified, we will refund this sample fee when you place the bulk order.

A: Payment<=3000USD, 100% in advance. Payment＞3000USD, it can be 30% T/T in advance, balance before shippment.

A: The quantity is just for reference.You can mix different sizes.

A: Most of products are OEM or ODM with your logo and customized products will be extra cost.

A:We are direct factory who owns production lines and workers.

Do you know cartridge housings' Construction, usage, filtration working principle? Do you know how to exchange the filter element? what is the cartridge filter housings' advantage? To know more detail......