Main trade-off
Hayward TigerShark QC
Bottom-access filter requires more handling
Head-to-head
Choose TigerShark QC for control-box operation and lower dry weight in a pool up to 20 by 40 feet. Choose Nautilus CC Supreme for app scheduling, top-access filters and a pool up to 50 feet. Both offer a 90-minute option, so the Quick Clean name alone does not make Hayward faster.
Before you choose
Both offer a 90-minute option.
What this is based on
Supreme's 1.5 hours × 60 = 90 minutes. Equivalent duration does not prove equivalent cleaning coverage.
Main trade-off
Bottom-access filter requires more handling
Main trade-off
3.13 lb heavier dry


Compare TigerShark QC and Nautilus CC Supreme for pool size, filter access, cycle selection and lifting weight. A shorter cycle is not a cleaning-speed test.
Choose TigerShark QC for control-box operation and lower dry weight in a pool up to 20 by 40 feet. Choose Nautilus CC Supreme for app scheduling, top-access filters and a pool up to 50 feet. Both offer a 90-minute option, so the Quick Clean name alone does not make Hayward faster.
Winner by situation
Hayward stops at 40 feet and Supreme is rated to 50.
Hayward exceeds its width limit. Supreme's length rating covers 38 feet, but complete geometry needs confirmation.
Supreme provides MyDolphin Plus while TigerShark's reviewed controls are local.
Hayward requires side placement and bottom access. Supreme uses top access.
Hayward lists 90 minutes and Supreme lists 1.5 hours.
What matters in practice
Both offer a 90-minute option.
Supreme's 1.5 hours × 60 = 90 minutes. Equivalent duration does not prove equivalent cleaning coverage.
Supreme avoids the bottom-lid step but weighs more dry.
Hayward requires placing the cleaner on its side to remove the filter lid. Supreme lists top access. 24.63 − 21.5 = 3.13 lb.
A pool can be short enough and still exceed the rated width.
The published envelope is 20 × 40 ft. A 22 × 38 ft pool exceeds that width despite staying under 40 ft long.

Hayward, RC9990CUB
A durable older-school corded robot with a 90-minute quick clean and a four-hour full scrub.

Dolphin, 99991083-PC
A three-brush flagship Nautilus that reaches the waterline and offers short or deep app-controlled cycles.
Meaningful differences
| What changes | Hayward TigerShark QC | Dolphin Nautilus CC Supreme | Why it matters |
|---|---|---|---|
| Pool-size rating | Up to 20 × 40 ft | Up to 50 ft length | Hayward's width limit must not be omitted. |
| Published cycles | 90-minute Quick Clean and four-hour full cycle | 1.5 and 2.5 hours | Duration does not establish equal coverage. |
| Filter access | Side placement and bottom-lid removal | Top access | Maintenance posture differs after draining. |
| Dry weight | 21.5 lb | 24.63 lb | Retained water adds lifting weight. |
| Controls | Local control box | MyDolphin Plus with weekly timer and delay | Remote scheduling requires connected controls. |
| Filter and surface notes | Cartridge filter, optional foam rollers may be needed for tile | Fine plus additional ultra-fine kit | Confirm surface requirements and supplied equipment. |
What you give up
Recommendation switch
Choose Dolphin Nautilus CC Supreme. TigerShark is outside its envelope. Confirm Supreme's complete pool compatibility.
Choose Dolphin Nautilus CC Supreme. Supreme supplies the required connected controls.
Choose Hayward TigerShark QC. TigerShark matches that routine.
What matters in practice
Hayward specifies a 20 by 40 ft envelope. Omitting width can create a false match. Supreme gives a 50-foot length rating, which still needs checking against the pool's shape and surface.
TigerShark is lighter, but the filter comes out through the bottom after turning it on its side. Supreme is heavier with top access. Consider the action repeated after each run rather than weight alone.
Both offer 90 minutes. Hayward describes Quick Clean as treating the main pool area, while the full cycle is about four hours. Different full-cycle durations do not establish which machine completes the same job better or faster.
What the facts say
Useful conclusions from the current robot pool cleaners comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Hayward TigerShark QC |
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| Dolphin Nautilus CC Supreme |
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Ready to choose?
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Use local control-box cycle selection
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Access filter media from the top
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