If you have been thinking about putting in a pond in your yard, you will want to check out these items. We bought these new to put in a pond ourselves but because of health issues we have decided not to. The liner is 15' x 16' which will make a 1,200 gallon pond. It is 20 mil. thick and is warranted for 20 years against uv damage. The filter is a Biological filter capable of filtering a 1,200 gallon pond. Both were manufactured by Pond Works by Little Giant and together cost over $300. I need these items gone from my garage so will take any reasonable offer for them. Contact me through Nextech.