This piece is mountable without unstepping the mast. Cut the boot vertically then wrap it around the mast. Leave enough material for the ends of the boot to overlap. Trim off the top and bottom so that the circumference is correct to match the circumference of the mast and the circumference of the mast collar. Adhesive is included to bond the two ends of the overlap together.

Boot:
Mast circumference: 23" plus
Mast collar circumference: up to 37" (see note 2 in Warnings & Notes)

Stainless steel clamps, included:
Mast circumference: 22" to 26-5/8"
Mast collar circumference: 27" to 31-3/4" (C-34, C-36 non-furling masts) (For in mast furling rigs and Catalina 42s see note 2 in Warnings & Notes)

1) To clean use a good detergent, acetone or denatured alcohol. For stubborn stains use MEK solvent. The above cleaning should be followed by a vinyl cleaner like Meguires Heavy Duty Vinyl Cleaner. After restoration or when installing a new boot, apply a coating of Meguires PolyProtect and Vinyl Conditioner or ArmorAll to improve resistance to staining and dirt accumulation and assist in prolonging the life of the plastic.

2) This kit and clamps to fit Catalina 34 and 36s with non-furling masts. However, if your mast is a furling mast, the mast collar is larger requiring the additional larger clamp, F8040, shown below.

3) Since this is a universal fit, it will never be as perfect a fit as one molded to fit an individual mast extrusion like A8226 pictured below. However, if the mast is already stepped, this boot can be assembled around the mast rather than having to be slid up from the base of the mast before stepping.