Swimline Leaf Net 18' x 36' Rectangle In Ground Pool Cover, 4' Overlap, Black | CO91836R Leaf Nets An invisible liquid barrier that

An invisible liquid barrier that conserves water and heat

Proceed with normal spa maintenance

(total system) Grid Length 30" (measured end to end — collar not included) Collar Configuration Open slot (2 notches) Grid Type Partial grid (used in 7 full + 1 partial configurations) Material High-grade DE filter fabric with reinforced seaming Note from Unicel: Collar has open slot (2 notches)

No methylene chloride

Roll up flat for easy storage

Swimline Leaf Net 18' x 36' Rectangle In Ground Pool Cover, 4' Overlap, Black | CO91836R Leaf Nets An invisible liquid barrier thatSwimline Leaf Net is made from an exceptionally durable, woven material that's so lightweight you can easily carry even under one arm. It prevents leaves and twigs from contaminating your pool water and eliminates that swamp like build up that makes spring cleaning such a chore. Includes convenient winch tightening device that secures the leaf net to the side of the pool. Features and Benefits: Lightweight and easy to carry Prevents leaves and twigs