HST Pro-Tex cover for Cal Spas – 84 x 84 in, black

Replace your compatible Cal Spas cover with a black 84 x 84 in HST Pro-Tex cover. This configuration combines a 5-to-3 in taper, a full heat seal, and a welded 6 mil vapor barrier to help retain heat when the spa is closed.

Features and dimensions

• Manufacturer: HST
• Application: Compatible with Cal Spas
• SKU: HSTBCOUVERTCAL8484AB
• Dimensions: 84 x 84 in
• Taper thickness: 5 to 3 in
• Corner radius: 8 in
• Skirt: 5 in, with overlap
• Cover material: Black Pro-Tex Grade A
• Vapor barrier: 6 mil, welded
• Full heat seal
• Two rubber handles
• Made in Canada

Configuration to check for your spa

This 84 x 84 in size is different from the 93 x 93 in Cal Spas cover. Compare the outside dimensions, 8 in corner radius, and 5 in skirt; the spa brand alone isn't enough to select the right configuration.

Insulation and foam protection

The 5-to-3 in taper helps water drain off. The full heat seal and overlapping skirt help limit gaps where heat can escape. The welded 6 mil vapor barrier protects the interior against moisture transfer. A properly fitted, closed, and maintained cover helps retain heat.

Pro-Tex and handling

HST's Pro-Tex is solution-dyed polyester with a polyurethane coating. The materials are UV-treated and mildew-resistant. HST states that the fabric is 25% lighter than vinyl; this comparison applies to the cover material, not the total weight of the cover. Use the handles after gently releasing the seal, without pulling on the skirt.

Installation and maintenance

Check the fit around the perimeter, the alignment of the straps, and compatibility with the lifter. Clean with a soft cloth, water, and mild soap. Gently remove snow with a broom and drain any standing water. Confirm delivery or pickup options before ordering this bulky cover.

In the box

1 black 84 x 84 in HST Pro-Tex cover in the specified configuration, with two rubber handles. The spa and cover lifter are sold separately.

Need help choosing?

Provide the spa model and year, photos of the cover and its straps, as well as the dimensions, corner radius, skirt, and fold direction. Include SKU HSTBCOUVERTCAL8484AB.