Blackthorne Spas
Smartop by Leisure Concepts logo for premium hot tub covers

THE LAST COVER YOUR HOT TUB WILL EVER NEED

Smartop by Leisure Concepts logo for premium hot tub covers

THE LAST COVER YOUR HOT TUB WILL EVER NEED

WeatherShield Covers

Our WeatherShield fabric is a 100% solution-dyed polyester that’s light-weight, extremely durable, environmentally superior and does not absorb water. ​ Other benefits include: ​

  • Reduces overall cover weight by 25%
  • 3x stronger than traditional vinyl
  • Provides superior tear and abrasion resistance
  • Made with recyclable materials so it’s environmentally superior
Core Spa Covers WeatherShield hot tub cover material with water beading on surface
Jet Black Jet Black
Desert Taupe Desert Taupe
Brazilian Mahogany Brazilian Mahogany
Redwood Redwood
Oxford Grey Oxford Grey

Marine-grade Vinyl Colors​

Our premium marine-grade vinyl is treated with mildew and UV inhibitors and is available in 18 designer colors, which provides lasting beauty to match nearly any décor. View photos of spa covers in the colors of your choice by clicking on the colors below.

Black Black
Bourbon Bourbon
Cajun Rust Cajun Rust
Charcoal Charcoal
Coastal Gray / Ash Coastal Gray / Ash
Gray Gray
Hunter Green Hunter Green
Mahogany Mahogany
Mayan Brown Mayan Brown
Mocha Mocha
Navy Navy
Oxen Oxen
Parchment Parchment
Sand Sand
Sky Blue Sky Blue
Tan Tan
Walnut Walnut
Wildwood Wildwood
Caldera Spas logo with Come to Life tagline representing premium hot tubs and spa accessories
Custom-fit Caldera Spa replacement cover from Blackthorne Spas with energy-efficient insulation and WeatherPro® exterior

Designed specifically for Caldera® Spas, these premium covers help retain heat, improve energy efficiency, and reduce operating costs. We also offer replacement covers compatible with all Watkins Manufacturing spa brands, including Hot Spring®, Freeflow®, AquaTerra and Fantasy® Spas.

Each cover features a custom-fit design, durable WeatherPro® material, built-in safety locks, and compatibility with Caldera cover lifter systems. Covers requiring metal support plates for cover lifter compatibility come with them factory-installed.

Choose from a variety of colors to complement your surroundings. Please note that not all colors are available for every spa model.  Your sales pro can help with color availability.

Black Black
Chestnut Chestnut
Storm Storm
Gray Gray