Guide channels must be provided to retain your Centryco Screen covers. Allow 2mm clearance on the sides and 1mm on top. Perma Pleated Screens are available in various lengths, heights (v-depth), and up to 30′′ widths. Attachment methods include hook and loop fabric, PVC or Aluminum end plates. Applications that require widths over 30′′ may utilize our Sewn Screen construction method (SS) where supports are included to stabilize your cover.