You’ll find the POOL BLASTER Catfish Ultra (Gen 2) a handy cordless spot-cleaner that gives about 15% more suction and a 40% larger debris chamber than the original. It’s great for weekly skims, stairs, and tanning ledges, grabbing leaves and grit without frequent clogs. Expect a focused 20–30 minute run per charge and easy setup with a four-piece pole and multilayer filter. Scroll on to see detailed performance, limits, and who it’s best for.
Some Key Takeaways
- Cordless Catfish Ultra Gen 2 offers ~15% more suction and a 40% larger debris chamber than the original model.
- 7.4V lithium-ion battery provides about 20–30 minutes of focused cleaning per charge for light-to-moderate jobs.
- Four-piece 45″ pole, 10.5″ vacuum head, and nose-cone improve reach and maneuverability in tight or shallow areas.
- Xtreme Multilayer Filter Bag and soft-bristle head capture leaves and fine grit without frequent clogging.
- Best suited for weekly spot-cleaning, stairs, and ledges; not recommended for heavy opening-season or whole-pool deep cleans.
Quick Verdict: Is the POOL BLASTER Catfish Ultra (Gen 2) Worth Buying?
Cut through weekly grime with the Catfish Ultra (Gen 2): it’s a cordless, handheld pool vacuum that delivers noticeably stronger suction (about 15% more GPM) and a 40% larger debris chamber than the original, making it a solid choice for routine maintenance, spot-cleaning, and tight or shallow areas. You’ll appreciate its improved build quality — durable plastic, secure assembly, and a robust motor box — and the battery longevity matches light weekly use (7.4V, 16.28Wh). It won’t replace heavy-duty opening tools, but for regular upkeep it’s an efficient, evidence-backed value with clear strengths and predictable limits. Ideal for homeowners who want to keep their outdoor spaces pristine, the Catfish Ultra complements other robotic pool vacuums designed for whole-pool cleaning.
What’s New vs. the Original Catfish: Suction, Debris Capacity, and Filters
While it keeps the same handheld, hoseless convenience, the Catfish Ultra (Gen 2) steps up where the original mattered most: you get roughly 15% more suction (GPM) for stronger pick-up, a debris chamber that’s about 40% larger so you empty less often, and a reinforced motor box paired with the Xtreme Multilayer Filter Bag for improved fine-particle capture—changes that together make routine skimming and spot-cleaning measurably more efficient without adding bulk or complexity. You’ll notice increased flow that pulls fine grit into the multilayer bag, while the larger chamber reduces interruptions. Overall, the updates are targeted, verifiable, and practical. The product is well suited for homeowners who want to keep their pool pump basket and outdoor spaces functioning smoothly with minimal fuss and maintenance pool pump basket maintenance.
Real-World Performance: Suction, Runtime, Cleaning Reach, and Shallow-Area Use
Because the Gen 2 boosts suction and debris capacity, you’ll notice noticeably stronger pickup on typical weekly messes and fewer stops to empty the chamber. In testing, suction consistency held through most runs, capturing leaves and grit without clogging. Battery life matches light-to-moderate sessions—expect one focused 20–30 minute clean per charge; heavy use needs a recharge. Maneuverability range feels natural with the four-piece pole, letting you reach corners and steps; the 10.5″ head and nose cone help access tight spots. Shallow cleaning works well above the 12.25″ minimum depth, especially for steps and tanning ledges. This model is a solid fit for homeowners who value their outdoor living spaces and want reliable, simple maintenance.
What’s in the Box, Specs, and How to Set Up and Use It
Inside the box you’ll get everything needed for routine cleaning: the Catfish Ultra (Gen 2) unit with a removable 10.5″ vacuum head (soft-bristle brush), a nose-cone head for tight spots, a Xtreme Multilayer Filter Bag, a four-piece 45″ pool pole plus adapter, and the rechargeable 7.4 V lithium-ion battery already installed. You assemble the pole, attach the adapter, and snap on the head — straightforward with minimal assembly troubleshooting in tests. Operate handheld; rinse after use. Track battery maintenance and follow charging cycles to preserve runtime. Replace filters per debris load; storage tips: dry, cool place and remove battery for long-term storage. These pool cleaning accessories support beautiful outdoor living by keeping your pool area tidy and enjoyable.
Who Should Buy It (And Who Should Not): Use Cases, Limits, and Value Considerations
If you want a lightweight, cordless spot-cleaner for weekly maintenance or for steps and shallow areas, the Catfish Ultra (Gen 2) delivers strong value with 15% more suction and a 40% larger debris chamber than the original model. You should buy it if you need easy, hoseless weekly maintenance, quick spot-cleaning, or stair and shallow-area work without setup. Don’t buy it for opening-season heavy debris or deep-clean jobs; minimum operating depth and battery capacity limit runtime. Maintenance tips: rinse after use, charge per instructions. In a cost comparison, it outperforms similar handhelds on convenience and debris capacity. Many homeowners pair handheld skimmers with larger tools to keep their backyards pristine, especially when maintaining multiple outdoor features like ponds and pools with pool skimmer nets.
Some Questions Answered
How Long Does the Battery Take to Fully Charge?
It takes about 3–4 hours to fully charge. You’ll get predictable battery lifespan only if you follow charging cycles and avoid deep discharges; the included 7.4V lithium-ion cell holds well for routine use. Charging indicators on the unit and charger show progress—typically a red light while charging and green when complete—so you can monitor state-of-charge. Regular charging and rinsing after use help preserve overall battery longevity.
Can I Replace the Battery Myself if It Fails?
You can replace the battery yourself, but it’s not designed for frequent user swaps; the battery is a 7.4V lithium-ion pack that requires careful handling and correct reassembly. DIY replacement may void the manufacturer warranty and usually prevents warranty transfer, so weigh risks. For evidence-based safety and warranty protection, contact Water Tech or an authorized service center to confirm replacement procedures or request an official battery replacement.
Is the Unit Safe to Use on Vinyl Pool Liners?
Yes — you can use it on vinyl liners. Its gentle suction and soft-bristle 10.5″ vacuum head reduce risk of scuffs, and the unit’s liner safe materials help prevent abrasion. Avoid forcing the nose cone into seams or sharp edges, don’t run on heavily debris-filled surfaces, and keep the minimum operating depth in mind. Rinse and inspect the head regularly to maintain safe contact and protect your liner.
Are Replacement Filter Bags and Parts Available?
Yes — you can get replacement bags and some aftermarket parts. Water Tech sells OEM Xtreme Multilayer replacement bags and common wear items; third-party sellers also offer compatible replacement bags and aftermarket parts like filters and seals. Verify fit using the model number (21151DL) and measurements. You should prefer OEM for longevity, but reputable aftermarket parts can be cheaper; check reviews and return policies before buying.
Does It Float if Accidentally Dropped in Deep Water?
No — it won’t float indefinitely; it floats briefly then sinks slowly. You’ll notice the unit’s plastic body and internal lithium-ion battery give it limited buoyancy, so if dropped in deep water it may bob for a short moment before descending. Based on weight and construction, you should retrieve it quickly or use a floating retrieval tool. Regular rinsing and drying help prevent water damage if recovery is delayed.



