Delta II No-Tangle Construction Harness, Back D-Ring, Universal, Pass-Thru checklist-This product is non returnable Landmark shingles should be used

Landmark shingles should be used on roofs with slopes greater than 2" per foot

Bump fire or sequential firing mode

a customizable patch

one heat mode speed

Designed to work in conjunction with a site built curb and the ECW cannot be installed on skylights from other manufacturers or other VELUX skylight models not noted above

Delta II No-Tangle Construction Harness, Back D-Ring, Universal, Pass-Thru checklist-This product is non returnable Landmark shingles should be usedAdjustable non slip chest strap with easy to use pass thru buckle Delta No Tangle design for added comfort and easy donning Parachute buckles on lower shoulder straps for quick and easy adjustment Spring loaded stand up back D ring ensures fast, easy, and safe connections