This page contains Amazon affiliate links. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
A solar pool cover does more than keep debris out; it can significantly warm your pool by trapping solar heat and reducing evaporation. Choosing the right cover depends on your climate, pool size, and whether you want maximum heating, overnight heat retention, or even summer cooling. In this comparison, we look at five GeoBubble covers available from Solar Pool Supply.
For a broader look at solar pool heating options, see our guide on solar pool heating.
Every specification on this page comes from each product’s page on the maker’s site or a specialist seller’s site (named under Sources), checked on 29 October 2026. We have not used these products ourselves, so the picks are based on published specifications only.
If you’re also considering solar collectors, see our comparison of solar pool heating panels.
How we chose these
- Heating vs. cooling goal: Some covers are optimized for heat gain, others for cooling or heat retention.
- Material technology: Look for features like graphene enhancement or algae-inhibiting properties.
- Size availability: Ensure the cover fits your pool dimensions; all models come in many sizes.
- Durability and warranty: Check the maker’s stated lifespan and warranty terms, which are not listed on the product pages.
GeoBubble does not list thickness or warranty details for these covers on the product pages, so you may need to inquire directly.
Comparison table
| Product | Primary Use | Key Feature | Available Sizes | Maker’s Description |
|---|---|---|---|---|
| Gen2 Sol+Guard | Heating | Graphene enhanced | 7′ round to 16′ x 40′ | High-performance graphene-enhanced cover |
| EnergyGuard | Heating & algae inhibition | Award-winning, algae-inhibiting | 7′ round to 16′ x 40′ | Award-winning cover for heating while inhibiting algae |
| CoolGuard | Summer cooling | Designed to cool pool water | 7′ round to 16′ x 40′ | Summer cooling pool cover |
| RaeGuard | Heat retention | Focus on retaining heat overnight | 7′ round to 16′ x 40′ | Heat retaining pool cover |
| Sol+Guard | Heating | High performance | 7′ round to 16′ x 40′ | High performance pool cover |
All covers are available in multiple sizes; check the product page for exact dimensions. Thickness and warranty information is not provided on the maker’s site.
1. GeoBubble Gen2 Sol+Guard: for maximum solar heat gain
GeoBubble describes the Gen2 Sol+Guard as a graphene enhanced high-performance pool cover. It is available in a wide range of sizes, from 7-foot round to 16 by 40 feet. The maker offers options for use with a reel or for folding without a reel.
- Graphene enhanced material (GeoBubble)
- Available in round and rectangular shapes (GeoBubble)
- Multiple size options listed (GeoBubble)
Pros: Graphene-enhanced material per GeoBubble; wide size range; reel-compatible options.
Cons: Thickness not stated by maker; no specific heat gain figures provided.
Check the GeoBubble Gen2 Sol+Guard on Amazon
2. GeoBubble EnergyGuard: for heating and algae inhibition
GeoBubble calls the EnergyGuard an award-winning solar pool cover and states it is designed to heat the water while helping to inhibit algae growth. It comes in many sizes, from small round to large rectangular pools. Like other GeoBubble covers, it can be used with a reel or folded.
- Award-winning design (GeoBubble)
- Algae-inhibiting property claimed (GeoBubble)
- Sizes up to 16′ x 40′ available (GeoBubble)
Pros: Specifically targets algae inhibition; award-winning; broad size availability.
Cons: No details on how algae inhibition works; thickness not stated.
Check the GeoBubble EnergyGuard on Amazon
3. GeoBubble CoolGuard: for summer cooling
The CoolGuard is marketed as a summer cooling pool cover. GeoBubble indicates it is intended to help keep pool water cooler during hot months. It is offered in the same extensive size range as other models.
- Designed for cooling (GeoBubble)
- Available in round and rectangular sizes (GeoBubble)
Pros: Unique cooling focus; same size options.
Cons: Not for heating; no explanation of cooling mechanism provided.
Check the GeoBubble CoolGuard on Amazon
4. GeoBubble RaeGuard: for heat retention
GeoBubble’s RaeGuard is described as a heat retaining pool cover. GeoBubble describes it as a cover meant to hold warmth in the water. Sizes range from 7-foot round up to 16 by 40 feet.
- Heat retaining design (GeoBubble)
- Multiple size options (GeoBubble)
Pros: Targets heat retention; wide size range.
Cons: Not stated if it also provides heating; thickness unknown.
Check the GeoBubble RaeGuard on Amazon
5. GeoBubble Sol+Guard: for high-performance heating
The Sol+Guard is positioned as a high performance pool cover. GeoBubble does not specify graphene enhancement for this model, unlike the Gen2 version. It is available in many sizes, from small round to large rectangular.
- High performance claim (GeoBubble)
- Sizes up to 16′ x 40′ (GeoBubble)
Pros: High performance heating; extensive size options.
Cons: No graphene mentioned; no specific performance data.
Check the GeoBubble Sol+Guard on Amazon
Which one fits you
| Your situation | Look at | Why |
|---|---|---|
| You want maximum heat gain | Gen2 Sol+Guard or Sol+Guard | These are marketed as high-performance covers, with Gen2 adding graphene. |
| You need to inhibit algae growth | EnergyGuard | GeoBubble claims this cover helps inhibit algae while heating. |
| You want to keep the pool cool in summer | CoolGuard | Specifically designed for summer cooling. |
| You prioritize overnight heat retention | RaeGuard | Marketed as a heat retaining cover. |
Practical tips
- Measure your pool carefully before ordering; check the size list on the product page against your pool.
- Consider a reel system to make covering and uncovering easier; GeoBubble covers are compatible with reels.
- If you live in a hot climate, a cooling cover may be more beneficial than a heating cover.
- Contact the maker for thickness and warranty details, as these are not listed on the product pages.
Sources
Specifications from each product’s page on the maker’s site or a specialist seller’s site, checked 29 October 2026: GeoBubble Gen2 Sol+Guard, GeoBubble EnergyGuard, GeoBubble CoolGuard, GeoBubble RaeGuard, GeoBubble Sol+Guard. Makers can change specifications; check the product page before you buy.
