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Spatender 6' x 6' Foam vs Spatender 7x6 ft Floating Thermal (2026): Key Differences

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You are looking at the spatender 6 x 6 foam vs 7x6 ft floating thermal comparison. Both products use 3/8-inch closed-cell foam to reduce heat loss and protect your hard cover from chemicals. They share the same cream color and rectangular shape. The main difference is the size. The first option measures 6 feet by 6 feet. The second measures 7 feet by 6 feet. You need to match the dimensions to your tub.

Key differences

AspectSpatender 6' x 6' Foam Floating Spa BlanketSpatender 7x6 ft Floating Thermal Spa Blanket
Dimensions6' x 6'7' x 6'
Length72 inches84 inches
Model2021tc-2

Which one should you choose?

Choose Spatender 6' x 6' Foam Floating Spa Blanket if

  • You have a square hot tub that is 6 feet wide and 6 feet long.
  • You want a blanket that fits a smaller footprint without overhang.
  • You prefer the model labeled 2021.

Choose Spatender 7x6 ft Floating Thermal Spa Blanket if

  • You have a rectangular hot tub that is 7 feet long and 6 feet wide.
  • You need extra coverage for a longer tub.
  • You prefer the model labeled tc-2.

Verdict: Choose the 6' x 6' foam if your tub is square. Choose the 7' x 6' floating thermal if your tub is longer. Both provide the same insulation and protection.

Spatender 6x6 vs 7x6 Foam Blankets

Dimensions and Fit

Edge: Tie

The Spatender 6' x 6' Foam Floating Spa Blanket measures 72 inches by 72 inches. This square shape suits compact hot tubs or smaller spas perfectly. The Spatender 7x6 ft Floating Thermal Spa Blanket measures 72 inches by 84 inches. Its rectangular shape covers larger tubs that are longer than they are wide. You should measure your spa carefully before buying. A 6x6 blanket might leave gaps on a 7x6 tub, while a 7x6 blanket may overhang significantly on a 6x6 model. Choosing the right size ensures full coverage for your specific hot tub dimensions.

Material Thickness

Edge: Tie

Both products use 3/8-inch thick closed-cell foam. The 6x6 model uses Thermaltech foam for insulation. The 7x6 model also uses Thermaltech foam. This consistent thickness means both blankets provide similar thermal resistance. The closed-cell structure prevents water absorption, keeping the foam lightweight and durable. You get the same insulating performance regardless of which size you pick. The material is strong enough to endure weather changes. It helps protect your hard cover from chemical damage. The thickness is optimal for floating on the water surface without sinking.

Shape Geometry

Edge: Tie

The Spatender 6' x 6' Foam Floating Spa Blanket is a square. Its equal sides make it ideal for square spas or compact round tubs where you can center it. The Spatender 7x6 ft Floating Thermal Spa Blanket is rectangular. This shape aligns better with standard rectangular hot tubs that have a longer dimension. The geometry affects how well the blanket covers the water surface. A square blanket on a rectangular tub may leave corners exposed. A rectangular blanket on a square tub may hang over the edges. Match the shape to your tub's footprint for best results.

Color and Appearance

Edge: Tie

Both the Spatender 6' x 6' Foam Floating Spa Blanket and the Spatender 7x6 ft Floating Thermal Spa Blanket come in cream. This neutral color blends well with most spa environments. The cream finish helps the blanket look clean and unobtrusive. It does not clash with typical hot tub colors. The visual appearance is identical between the two sizes. You will not notice a difference in aesthetics based on the product model. The color remains consistent across the entire surface area. This uniform look maintains a tidy appearance for your outdoor relaxation space.

Model Specifics

Edge: Tie

The Spatender 6' x 6' Foam Floating Spa Blanket is listed as model 2021. The Spatender 7x6 ft Floating Thermal Spa Blanket is model tc-2. These model numbers identify the specific product variants. The 6x6 is a square variant, while the 7x6 is a rectangular variant. The model numbers do not indicate a difference in quality or material. They simply help you distinguish between the two sizes when ordering. Both models share the same core features and construction. The model designation ensures you receive the correct size for your needs.

Which Spatender Blanket Fits Your Tub

Owner of a compact square hot tub

Our pick: Spatender 6' x 6' Foam Floating Spa Blanket

This 6' x 6' blanket matches your tub's square footprint exactly. The 72-inch by 72-inch dimensions provide full coverage without excess material. You get the same 3/8-inch thermaltech foam insulation as the larger model. It floats effectively to block heat loss and protect your hard cover from chemical damage. This size offers a clean fit for smaller spas.

Owner of a larger rectangular hot tub

Our pick: Spatender 7x6 ft Floating Thermal Spa Blanket

This 7' x 6' blanket covers rectangular tubs measuring up to 84 inches long. The extra 12 inches of length compared to the square model ensures adequate surface coverage. You still benefit from the durable 3/8-inch closed-cell foam that reduces evaporation and heat loss. It shields your expensive hard cover from harsh chemicals and gases while floating on the water.

User needing maximum surface area coverage

Our pick: Spatender 7x6 ft Floating Thermal Spa Blanket

The 7' x 6' dimensions provide the largest surface area in this comparison. This 84-inch length accommodates deeper or longer spas that the 6' x 6' model cannot cover fully. Both blankets use identical thermaltech foam to trap heat at the surface. Choosing this size ensures you minimize heat escape through evaporation across the entire water surface of a larger vessel.

The products compared

Spatender 6' x 6' Foam Floating Spa Blanket

Best for: 6' x 6' spas needing thermal protection

Cover Type
Floating Thermal Hot Tub Blanket
Shape
Rectangular
Dimensions
6' x 6'
Shell Material
Closed Cell Foam
Thickness
3/8"
Features
Pool Cover

View on Amazon: Spatender 6' x 6' Foam Floating Spa Blanket Affiliate link

This Spatender thermal blanket measures 6' x 6' with 3/8" thick closed-cell foam. It floats directly on the water to reduce heat loss from evaporation. The material protects your hard cover from chemical damage. It fits most rectangular spas. You can trim it with scissors for a custom fit. This option keeps debris out and retains warmth during summer or winter use.

Pros

  • 3/8" thick closed-cell foam construction
  • 6' x 6' rectangular dimensions
  • Floats on water to trap heat
  • Protects hard cover from chemicals

Cons

  • Smaller 6' x 6' size limits compatibility
  • Requires manual cutting for perfect fit
  • No built-in locking or securing mechanism

Good fit if

  • You have a 6' x 6' rectangular spa
  • You want to protect your hard cover
  • You need a lightweight summer option

Skip if

  • You have a 7' x 6' hot tub
  • You need a rigid floating cover
  • You want a pre-cut custom fit

Verdict: Spatender 6x6 Foam Floating Spa Blanket is a practical thermal layer for owners of 6' x 6' spas who want to reduce evaporation and protect their hard cover from chemical damage.

Spatender 7x6 ft Floating Thermal Spa Blanket

Best for: protecting hard covers and reducing evaporation

Cover Type
Floating Thermal Spa Cover Blanket
Shape
Rectangular
Dimensions
7' x 6'
Shell Material
Thermaltech foam
Thickness
3/8"
Features
Pool Cover

View on Amazon: Spatender 7x6 ft Floating Thermal Spa Blanket Affiliate link

This Spatender thermal cover is a 3/8-inch thick rectangular foam blanket designed for 7' x 6' hot tubs. It floats directly on the water surface to reduce heat loss through evaporation. The durable Thermaltech foam protects your existing hard cover from chemical damage and UV exposure. You can trim it to fit your tub precisely. It serves as a lightweight alternative to bulky covers during warmer months.

Pros

  • 3/8-inch thick Thermaltech foam provides durable insulation
  • Floating design reduces heat loss and evaporation
  • Protects hard cover from chemical and gas damage
  • Customizable fit allows trimming with scissors

Cons

  • Only fits 7' x 6' rectangular tubs
  • Requires manual trimming for precise fit
  • Does not insulate the sides of the tub

Good fit if

  • You need a lightweight cover for summer use
  • You want to protect your hard cover from chemicals
  • You have a 7' x 6' rectangular hot tub

Skip if

  • You have a round or square hot tub
  • You need a cover that insulates the sides
  • You want a rigid cover that stays in place

Verdict: Spatender 7x6 ft Floating Thermal Spa Blanket is a practical solution for owners of 7' x 6' rectangular tubs who want to reduce heating costs and protect their hard cover. It works best as a seasonal layer rather than a primary insulated cover.

Specifications side by side

Spec Spatender 6' x 6' Foam Floating Spa Blanket Spatender 7x6 ft Floating Thermal Spa Blanket
Cover Type Floating Thermal Hot Tub Blanket Floating Thermal Spa Cover Blanket
Shape Rectangular Rectangular
Dimensions 6' x 6' 7' x 6'
Shell Material Closed Cell Foam Thermaltech foam
Thickness 3/8" 3/8"
Material Foam Foam
Features Pool Cover Pool Cover
Use Spas Spas
Length 72 inches 84 inches
Width 72 inches 72 inches
Size 6' x 6' (Rectangular) 7' x 6' (Rectangular)
Color cream cream
Model 2021 tc-2

Frequently asked questions

Is the Spatender 6x6 foam blanket suitable for rectangular spas?

Yes, the Spatender 6' x 6' Foam Floating Spa Blanket fits rectangular spas that are 6 feet wide and 6 feet long. Its square shape provides full coverage for compact hot tubs. It reduces evaporation and protects your hard cover from chemical damage. The 3/8-inch closed-cell foam offers practical thermal protection for your specific tub size.

What is the difference between the Spatender 6x6 and 7x6 models?

The primary difference is the length. The 6' x 6' model measures 72 inches by 72 inches. The 7x6 ft Floating Thermal Spa Blanket measures 72 inches by 84 inches. Both use cream-colored foam and share the same rectangular design. Choose the 7x6 model if your tub is longer than six feet.

Does the Spatender 7x6 floating thermal blanket reduce heating costs?

Yes, this blanket helps reduce heating costs by minimizing heat loss. It acts as a seasonal layer to protect your hard cover and reduce evaporation. The 3/8-inch foam insulation traps heat effectively. It is a practical solution for owners of 7' x 6' rectangular tubs seeking energy efficiency.

Can I use the Spatender 6x6 blanket as a primary cover?

This foam blanket is designed as a thermal layer rather than a primary insulated cover. It works best alongside your existing hard cover. The 6' x 6' dimensions provide full coverage for square spas. It protects your main cover from chemical damage and reduces water evaporation during use.

What material are these Spatender spa blankets made from?

Both models are made from closed-cell foam. This material is durable and floats on the water surface. The foam provides thermal insulation to keep your spa warm. It also shields your hard cover from harsh chemicals. The cream color blends well with most spa environments.

Is the Spatender 7x6 thermal blanket compatible with 7-foot long spas?

Yes, the Spatender 7x6 ft Floating Thermal Spa Blanket is sized for 7-foot long spas. It measures 84 inches in length and 72 inches in width. This rectangular shape ensures complete coverage for your tub. It reduces evaporation and protects your equipment from chemical damage effectively.

See also