UNIVERSAL: Compatible with all manufacturers of ice dam prevention heat cables and most asphalt shingle roofing systems. Select the correct Grip Clip size for your roof material. Model 325 for 1/8" to 3/8", Model 625 for 3/8 to 5/8, Model 875 for 5/8 to 7/8.
MADE TO LAST: Grip Clips will not loosen and can hold over 40 pounds per clip for a secure long lasting solution.