Coocosh

20-Mil Fish-Safe Pond Liner 10×13 ft – Flexible LLDPE, UV & Puncture Resistant for Koi Ponds, Waterfalls & Water Gardens

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• Sku: CJJT234765801AZ
• Available: Instock
• Collections: Home & Garden, Home & Living
• Tags: 20 mil pond liner, backyard pond supplies, fish safe pond liner, flexible pond liner, garden water feature, koi pond liner, LLDPE liner, pond liner, pond underlayment, waterfall liner

Description

Thick, fish-safe liner that shapes to your pond.
This 10 × 13 ft 20-mil pond liner is made from LLDPE—flexible, non-toxic, and designed for long outdoor life. Cut and form it to fit new or existing koi ponds, streams, waterfalls, fountains and water gardens. The heavy-duty sheet resists UV, punctures, and weathering, helping prevent leaks from sharp stones or root intrusion.

Highlights

• 20-mil extra-thick LLDPE: durable, flexible and easy to fold or crease into corners

• Fish & plant safe: non-toxic, odorless material for aquatic life

• UV, puncture & aging resistant: built for years of outdoor exposure

• Cut-to-fit: trim with scissors/utility knife to match custom shapes

• Multi-use: ponds, waterfall bases, streams, raised beds, and water features

Specs (supplier)

• Size: 10 × 13 ft (approx.)

• Material: LLDPE (20-mil)

• Color: Black

• Ships from: US warehouse

What’s in the box

• 1 × 10 × 13 ft pond liner (folded & bagged)

Use & Care

• Prepare a smooth base: remove roots/sharp stones; add underlayment or sand if needed.

• Allow extra overlap at edges for anchoring.

• Rinse before filling; avoid direct flame/solvents.

Note: Dimensions are nominal; minor variation may occur due to fold and stretch. Tax is calculated at checkout.

Shipping and Returns

Shipping (US only for this item)

• Processing time: 1–3 business days from US warehouse.

• Carrier: CJ FreeShipping with tracking.

• Estimated delivery: 3–7 business days after dispatch.

Returns

• Return window: 30 days from delivery.

• Condition: item must be clean, unused, and returned with original packaging.

• Start a return: contact support with your order number. If the product arrives damaged/defective, we’ll provide a prepaid label; otherwise standard return shipping may apply.

• Refunds are issued to the original payment method after inspection.

Return Policies For This Product

Eligible for refunds within 30 days of receiving the product. Item must be in original condition and packaging with all accessories. Contact us for authorization and return instructions.

Pairs well with