Model assessment · Dolphin / Maytronics

Dolphin Refurbished Proteus DX4 review

A separately numbered refurbished, corded Proteus DX4 listing with floor, wall and waterline coverage to a 50-ft maximum pool length, a weekly timer and one-year warranty wording.

Sources checked 2026-10-31 · Our editorial approach

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Exact-page-linked Maytronics image for Refurbished Proteus DX4 88886207-LSWF; it shows the standard Proteus DX4 body, not a particular refurbished unit.
Official Maytronics image · standard Proteus DX4 model render; refurbished condition not shown. Maytronics
A useful fit for

Documented corded floor/wall/waterline coverage, weekly timer and a 50-ft manufacturer-stated pool maximum; the exact page also lists a top-access Fine Filter Kit.

The main tradeoff

This is a separately numbered refurbished offer with one-year warranty wording, no app or delay feature, no additional Ultra-Fine kit listed, and an exact-product manual link whose PDF title does not identify the SKU; verify the selected unit, package and current terms.

Your needs, this model

Does it fit your priorities?

Will the documented pool-length rating cover a pool about 50 feet long?

The exact refurbished page lists a 50-ft pool maximum and a separate 56-ft cable. The former is the pool-length field; cable routing and supply placement still need to fit the actual installation.

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What if documented app features are essential?

This exact product page marks Mobile Application: No. Weekly Timer is listed, but it does not replace app setup or status support, so this configuration does not meet an essential app requirement.

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Is an extra Ultra-Fine filter kit listed in the box?

The comparison table shows a dash for Additional Filter in the Box while the main filter field says Fine Filter Kit. Treat the extra Ultra-Fine kit as not listed for this offer, and verify the actual seller package and filter part numbers.

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This is a source-based assessment of the U.S. Dolphin Refurbished Proteus DX4, Product No. 88886207-LSWF. The exact Maytronics page describes a corded cleaner with a 50-foot pool-length limit, floor/wall/waterline coverage, a weekly timer and a one-year warranty. Its specifications are useful for screening a shortlist, but they do not describe the cosmetic state or exact carton of an individual refurbished unit, and this review is not a hands-on test.

Start with the full product number

Maytronics lists this as a refurbished Proteus DX4 under Product No. 88886207-LSWF. That is not the same offer record as the standard Dolphin Proteus DX4 99996207-LSWF: the name is similar, but the number and condition are different. The refurbished page's one-year warranty statement contrasts with two years on the separate standard-model page. Use the refurbished number when checking an offer, support instructions or warranty, and do not carry the new version's terms over to this listing. Maytronics' exact refurbished listing and the separately numbered standard Proteus DX4 page show those identifiers and warranty fields.

Pool rating is not cord reach

The refurbished page specifies a maximum pool length of 50 feet and names floor, walls and waterline as its cleaning coverage. It lists rectangular, round, free-shape and kidney pools, and classifies the product for in-ground and above-ground pools. Those are manufacturer-listed fit categories, not a promise that every transition, slope or wall shape will be handled equally well. Most importantly, the same table lists a 56-foot cable separately. A cable measurement is not the pool-length rating, and it does not tell you whether an outlet and power supply can be positioned safely with slack left for the actual route.

There is no separate step-depth or sun-ledge specification on the exact page. A general claim about pool shapes or three cleaning areas should not be upgraded into evidence for the finder’s depth-qualified step requirement. If steps, a shallow shelf, a particular finish or a specific depth are essential, ask for model-matched instructions that name 88886207-LSWF before treating the broad surface list as enough.

Timer support, without an app claim

The listed default cycle is two hours. Maytronics marks Weekly Timer as Yes, Delay Feature as No, Mobile Application as No and Remote Control as No. The entry “Automation Mode: Yes” appears without an explanation of what it controls, so it is not evidence of app access, remote steering or a second cleaning duration. For a simple corded routine that can use a weekly timer, those fields are more useful than assuming that every feature associated with another Proteus DX4 SKU will be present. If app setup or delay scheduling matters, this product page does not support that requirement.

Top access and one listed filter level

The exact record calls the filter a Fine Filter Kit and says access is from the top. It also lists no full-filter indicator, two brushes, a Standard Brush type and an active brush. The manufacturer’s 4,000-gallon-per-hour suction figure is a published specification, not an independent measurement or a guarantee of debris pickup in a particular pool.

In the comparison table, the “Additional Filter in the Box” field is shown as a dash. That is different from the main Fine Filter Kit label, and it does not establish a bundled extra Ultra-Fine kit. Separate replacement or add-on filter listings elsewhere on a store page are not package contents. If you need a particular debris grade, confirm the exact included basket or panel part number and any extra kit directly with the seller; the refurbished listing does not publish a micron rating for the main filter.

The linked manual needs a careful read

The product page's support link reaches a Maytronics manual-selector page headed “Refurbished Proteus DX4 User Manual” for this number. The linked English PDF, however, is titled for the Basic 11 / Classic 11 / Classic 11+ family rather than identifying Product No. 88886207-LSWF. I therefore do not use that PDF to assign this refurbished DX4's water-depth limits, electrical setup, chemistry limits, surface restrictions, filter-care schedule or storage instructions. The selector connection is real, but the document identity does not resolve those model-specific questions. Check with Maytronics for a manual that explicitly covers the offered number before relying on a generic-looking file.

Refurbished condition is not an inspection report

The title identifies a refurbished offer, but the standard-model render linked from the page cannot show the condition of the actual robot or prove that a seller's carton is complete. Maytronics' general U.S. Outlet information distinguishes refurbished items from Open Box offers and describes category-level restoration and terms; it is not an inspection record for this unit. Confirm the current offer's condition, one-year warranty route, return rules, power supply, filter set and included accessories in writing. The exact product comparison leaves caddy or stand inclusion blank, so plan for neither unless the specific offer confirms it.

Who might keep it on the list?

This listing is a plausible candidate when a corded floor/wall/waterline plan is acceptable, the pool is at or below the stated 50-foot maximum, and a one-year refurbished-offer warranty suits the buyer. Its top-access Fine Filter Kit, weekly timer and separately listed 56-foot cable are concrete comparison points; its no-app field, lack of a stated extra Ultra-Fine kit, and unresolved manual match are equally important.

Pause if cordless use, documented app features, an included Ultra-Fine kit, step-depth guidance, a particular supply position or complete refurbishment-specific setup instructions are hard requirements. Compare the exact suffix with the offer, verify the actual package and warranty, and use the finder to see other reviewed configurations without treating an empty or partial library as proof that no alternative exists.

Key specifications

Key details at a glance

Power sourceCorded / plug-in
Manufacturer-stated pool length limit50 ft
Documented coverage capabilityPool floor / Pool walls / Submerged waterline
Pool construction types listedIn-ground pool / Above-ground pool
Manufacturer filter labelFine filter kit
Filter accessTop access
Ultra-fine filter kit listed in boxNo
Default cycle shown2 hours
Robot weight shown18.48 lb
Warranty shown on manufacturer page1 years

Use the exact model’s instructions for operating limits, supplied equipment and version differences.

Sources for this review

Sources for this assessment

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Choose your pool type, required cleaning areas, power routine and filter needs, then check each exact model's limits and instructions.

In this review

Questions to consider for this model

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