EasyPro 4 oz. Duraliner Pond Liner Underlayment Select Size:10' x 360' The Filtration System includes both

The Filtration System includes both biological and mechanical filters

3-Year Warranty

push up into spliner groove and twist the locking knobs into place

Two 50-pound weights or concrete blocks required for anchoring (not included)

EasyPro 4 oz. Duraliner Pond Liner Underlayment Select Size:10' x 360' The Filtration System includes bothProvides additional tear and puncture protection from roots, stones or any other sharp objects underneath pond liner. Provides enhanced soil stability and erosion control. Underlayment can be used on top of liner as well to protect from punctures when adding gravel or rocks on top of liner. Four ounce, non woven, geo textile fabric Sold by the square foot in two widths 5 and 10 and any length up to 360 Easy to match up to EPDM liner that is sold in 5