Secur-net SF 18" Foot - Child Safe Pool Cover Steel Framed Pools Secur-Net SF to fit 18" diameter steel pools. Once installed pool is closed, LOCKED and safely secured in less than three minutes and is a safe way to protect your family. With "IT LOCKS" a safety orange zipper belt welded directly on the Secur-Net Child Safe Pool Cover providing additional security features. The design allows water to run off avoiding large areas of still water. The 18 - foot Secur-Net Child Safe Pool Cover for Steel Framed Pools features : Safe and easy assemble It Locks Safety orange zipper and lock Less than 3 minutes to close the Secure-Net Shaped to allow water run off Structural brackets faciliate the integration of our Secur-Net with all steel pools Designed to fit pools of all manufacturers.