Patriot complete fish pond kits are the popular selection from landscape professionals as well as critical residents. Our kits feature components from leading producers, chosen to cooperate to develop a stunning, low-maintenance lawn sanctuary. You get all the installation parts, products as well as directions you have to develop the water feature you want. This kit includes Patriot TWENTY mil PVC fish pond lining. Patriot TWENTY mil PVC fish pond lining is warranted for 5 years, limited guarantee when mounted with underlayment.