Boxed Liner Underlayment Select Size:5' x 10' The powerful combination of strong

The powerful combination of strong natural cleaners helps to break down organic debris in your feature while the phosphate binder will minimize algae growth

Semi-vortex impeller design enables the pump to handle solids more efficiently for less maintenance and trouble-free performance

20 and 24 ft

It is not meant to turn off the heating element when ice is not present

Its high quality

Boxed Liner Underlayment Select Size:5' x 10' The powerful combination of strongAquascape 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