ULTCOVER Waterproof 600D Polyester Square Hot Tub Cover 80 x 80 in

In this review the ULTCOVER Waterproof 600D Polyester Square Hot Tub Cover is evaluated for owners of square hot tubs up to 80(L) x 80(W) who need a simple, durable way to shield their spa when the insulated hard cover is in place. The single biggest reason to buy is straightforward protection: the 600D polyester canvas with waterproof backing keeps rain, snow, leaves and bird droppings off your tub while its structured vents and heavy duty elastic cords maintain fit and ventilation. This is a practical, affordable outer cover for anyone protecting an existing hard insulated lid.

Key Features

• Fit: Sized to fit hot tubs up to 80(L) x 80(W) so it covers most 5-person square spas with a snug external layer.
• Material: Constructed from 600D polyester canvas with waterproof backing to block rain, hail and dust from reaching the insulated lid beneath.
• Ventilation: Structured air vents at two sides promote airflow to reduce trapped moisture and help prevent the cover from ballooning in wind.
• Secure fit: Heavy duty elastic cords allow adjustment for a tighter fit during high winds and severe weather, keeping the cover in place.
• Full coverage: The design provides full sun and element protection so the visible surfaces of the hot tub remain in good condition.

Who It's For

The ULTCOVER outer cover is ideal for spa owners who already have an insulated hard cover and want an economical, waterproof outer layer to protect that cover and the tub from weather and debris. It suits those on a budget who still want heavy duty fabric and simple attachment rather than a locking or mechanical cover system.

It is not a standalone thermal cover and should not be used in place of an insulated lid; anyone seeking a primary insulating cover or a replacement hard cover needs to look at insulated cover options instead. Owners who prioritize long-term UV colorfastness should be aware that some users report color fading over time in bright sun.

Pros & Cons

Pros

• Durable 600D fabric provides strong protection against rain, snow, leaves and bird droppings.
• Structured vents prevent uplift and help keep the covered area drier.
• Elastic cords make it easy to achieve a tight fit, improving wind resistance.
• Full coverage keeps the tub looking newer by blocking sun exposure and debris.

Cons

• Cannot be used alone as an insulating cover; it must be paired with a hard insulated lid.
• Some customers report fading and occasional ripping after extended outdoor exposure.

Specifications

Brand	ULTCOVER
Model Type	Waterproof 600D Polyester Square Hot Tub Cover
Fits Hot Tub Size	Up to 80(L) x 80(W) in
Material	600D polyester canvas with waterproof backing
Vents	Structured air vents at two sides
Attachment	Heavy duty elastic cords for adjustable fit

Our Verdict

The ULTCOVER outer cover is a practical value buy for those who already use an insulated hard cover and want added waterproofing and debris protection. It offers robust fabric, adjustable fit and ventilation at a modest price, making it a sensible choice for routine weather protection, though buyers seeking long-term UV resistance or a standalone insulating lid should look elsewhere.

Frequently Asked Questions

Can this cover be used alone as the main cover?
No. This product is designed as an outer waterproof cover and must be used over an insulated hard cover; it does not provide primary insulation.

Will it keep rain and snow out?
Yes. The 600D polyester with waterproof backing sheds rain, snow and debris to protect the insulated lid beneath.

Does it stay on in wind?
The heavy duty elastic cords and side vents help secure the cover and reduce ballooning, though extreme weather may still require extra fastening.