The catch
Hayward TigerShark QC
More handling is needed with a bottom-access filter
Side by side
TigerShark QC is the choice for control-box operation and a lower dry weight in a pool up to 20 by 40 feet. Nautilus CC Supreme is the choice for app scheduling, top-access filters and a pool up to 50 feet. Because both offer a 90-minute option, the Quick Clean name alone does not make the Hayward faster.
Before you buy
Each has a 90-minute option.
Where this comes from
Equal duration does not prove equal cleaning coverage. Supreme's 1.5 hours × 60 = 90 minutes.
The catch
More handling is needed with a bottom-access filter
The catch
3.13 lb more when dry


We may earn a commission from qualifying Amazon purchases. How we make money
TigerShark QC and Nautilus CC Supreme are compared on pool size, filter access, cycle selection and lifting weight. A shorter cycle does not amount to a cleaning-speed test.
TigerShark QC is the choice for control-box operation and a lower dry weight in a pool up to 20 by 40 feet. Nautilus CC Supreme is the choice for app scheduling, top-access filters and a pool up to 50 feet. Because both offer a 90-minute option, the Quick Clean name alone does not make the Hayward faster.
Which one fits
Supreme is rated to 50, but Hayward stops at 40 feet.
Hayward's width limit is exceeded. Supreme's length rating does cover 38 feet, though the complete geometry still has to be confirmed.
TigerShark's reviewed controls are local, while Supreme provides MyDolphin Plus.
Supreme opens from the top. Hayward has to lie on its side and opens from the bottom.
Supreme's listing says 1.5 hours, and Hayward's says 90 minutes.
In practice
Each has a 90-minute option.
Equal duration does not prove equal cleaning coverage. Supreme's 1.5 hours × 60 = 90 minutes.
Supreme skips the bottom-lid step, though it is heavier dry.
To take off the filter lid on Hayward, you have to put the cleaner on its side. Supreme lists top access. 24.63 − 21.5 = 3.13 lb.
Even a pool of acceptable length can be wider than the rating allows.
A 22 × 38 ft pool stays under 40 ft long yet is wider than the published envelope of 20 × 40 ft.

Hayward, RC9990CUB
This durable, old-school corded robot offers a 90-minute quick clean and a four-hour full scrub.

Dolphin, 99991083-PC
The flagship Nautilus has three brushes, reaches the waterline and runs short or deep cycles you control from the app.
Spec by spec
| Spec | Hayward TigerShark QC | Dolphin Nautilus CC Supreme | In practice |
|---|---|---|---|
| Pool-size rating | Up to 20 × 40 ft | Up to 50 ft length | Do not leave out Hayward's width limit. |
| Published cycles | 90-minute Quick Clean and four-hour full cycle | 1.5 and 2.5 hours | Time alone does not show equal coverage. |
| Filter access | Side placement and bottom-lid removal | Top access | After draining, the way you handle maintenance differs. |
| Dry weight | 21.5 lb | 24.63 lb | Water left inside makes the lift heavier. |
| Controls | Local control box | MyDolphin Plus with weekly timer and delay | Connected controls are needed for remote scheduling. |
| Filter and surface notes | Cartridge filter, optional foam rollers may be needed for tile | Fine plus additional ultra-fine kit | Check the surface requirements and what equipment is supplied. |
Trade-offs
Change of plan
Go with Dolphin Nautilus CC Supreme. The pool is beyond TigerShark's envelope. Supreme's full pool compatibility still needs confirming.
Go with Dolphin Nautilus CC Supreme. The connected controls that are required come with Supreme.
Go with Hayward TigerShark QC. That routine suits TigerShark.
Decision guide
TigerShark QC fits control-box operation and lower dry weight in a pool up to 20 by 40 feet. Nautilus CC Supreme fits app scheduling, top-access filters and a pool up to 50 feet. The Quick Clean name alone does not make Hayward faster, since both offer a 90-minute option.
Hayward specifies a 20 by 40 ft envelope, and leaving out the width can produce a false match. Supreme gives a 50-foot length rating, which you still need to check against the pool's shape and surface.
The TigerShark is lighter, yet to get at the filter you turn it on its side and take it out through the bottom. The Supreme is heavier but has top access. Think about the motion you will repeat after every run as well as the weight.
Each offers 90 minutes. Hayward describes Quick Clean as treating the main pool area, and its full cycle is about four hours. Differing full-cycle durations do not show which machine finishes the same job better or faster.
By the numbers
What we found across the robot pool cleaners we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Hayward TigerShark QC |
|
| |
| Dolphin Nautilus CC Supreme |
|
|
Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Pick cycles on the local control box
See price & reviews on Amazon
Reach the filter media through the top
See price & reviews on AmazonEach link opens in a new tab.
We may earn a commission from qualifying Amazon purchases. How we make money