How to change Ametek sediment filter ps-00?

I have been using Ametek sediment filter for water filtration. The model of the water filter housing is PS-00. I have bought the filter cartridge. How can I take out the used filter cartridge and mount the new one?How to change Ametek sediment filter ps-00?No.The plastic housing unscrews.Turn it counter clockwise.Housing is the long thing hanging from the top part with the red button.If it won't come by hand go to the hardware store and buy a strap wrench.You'll need it in the future anyhow.