Boxed Liner Underlayment Select Size:12' x 15' diameter x 1

diameter x 1

Effectively controls bottom Algae

5-inch diameter valve allows up to 1

Includes stabilized multivitamin for healthier fish

Boxed Liner Underlayment Select Size:12' x 15' diameter x 1Aquascape Heavy Duty Pond Underlayment is available in convenient, precut sizes and comes boxed for easy transport and storage. Aquascape Heavy Duty Pond Underlayment is about 30% thicker than our Standard Underlayment, offering enhanced protection against rocky, root filled, and uneven soil surfaces that could damage the liner. Despite its increased thickness, this underlayment spreads easily and features a non slip surface, ensuring quick and easy