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  • Custom Pro 45 mil EPDM Pond Liner & Protective Underlayment Combo Kit
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Custom Pro EPDM Pond Liner & Protective Underlayment Combo Kit

Warranty Information

  • Includes 45 mil EPDM pond liner and heavy duty pond underlayment the same size
  • For koi ponds, water gardens and pondless water features
  • Premium pond liner has a 20 year guarantee and is made for the toughest applications
  • Underlayment increases the liner's puncture resistance by over 400 percent
  • Liner and underlayment can be cut easily with scissors
  • Safe for fish and aquatic plants, and made in the USA!

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Price varies depending upon options selected. Please select desired options to view final price.

Free US shipping for orders $99 and over pond supplies and accessories

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Product Description

The Custom Pro 45 mil EPDM Pond Liner and Underlayment Combo Kit is simply the best sold anywhere! When compared to inexpensive polyvinyl chloride (PVC) and other economy pond liner, this kit's 45 mil thick EPDM premium pond liner is in its own class. The pond liner even has a 20 year guarantee.

The heavy duty underlayment is designed to protect the pond liner from the sharp edges of rocks on the ground as well as from roots and burrowing animals. Acting as padding, it increases the pond liner's puncture resistance by more than 400 percent! Place the underlayment between the soil and the pond liner.

Both the liner and underlayment are black. The pond liner appears silvery because it has a coating of white talc powder to keep it from sticking to itself when folded or rolled.

PLEASE NOTE: Because we are an outdoor facility, your liner may arrive with some minor dirt/dust markings from rain splashing, however we guarantee it is brand new and never used!
ATTENTION: The 15'x25' and 20'x20' liner-underlayment combinations each ship in 2 boxes due to size.
Which size do you need?

To determine the size of liner and underlayment needed for your project, use the following formulas: 

(Max Length of Pond) + (2 x Max Depth of Pond)) + 1 = Length of Liner/Underlayment Needed 
(Max Width of Pond) + (2 x Max Depth of Pond)) + 1 = Width of Liner/Underlayment Needed 

It is always a good idea to have an additional foot of material on both the length and width of the liner and underlayment (represented by + 1 in the formulas). This allows room for error and also provides an overhang to secure the materials properly.

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