Pool-cleaner parts can look interchangeable while differing in a small dimension, connector, revision, or included piece. Use this checklist before ordering from the replacement-parts collection.
1. Identify the equipment, not just the part
Record the manufacturer, complete product-family name, exact model number, serial number or production date when available, and the region where the cleaner was sold. Model suffixes matter. Two cleaners with the same family name can use different motors, cables, tracks, filters, or housings.
Use the equipment label and manual as the primary references. A seller title, old receipt, or appearance alone may abbreviate the model identity.
2. Find the manufacturer part number
Compare the manufacturer part number on the existing part, exploded diagram, service manual, or official parts list. Check every digit, letter, dash, and suffix. A marketplace stock code or seller SKU is not necessarily the manufacturer part number.
3. Check revision and production range
Manufacturers sometimes revise a cleaner without changing the public family name. Look for serial-number ranges, model years, generation names, voltage, plug style, firmware generation, or notes such as “before” and “after” a particular production date. If the replacement listing names a range, confirm that your unit falls inside it.
4. Measure the critical dimensions
- Overall length, width, height, diameter, and thickness.
- Hose or pipe inside and outside diameter.
- Thread type, pitch, cuff, collar, plug, socket, or locking-tab arrangement.
- Mounting-hole count, spacing, orientation, and fastener size.
- Cable length, voltage, wattage, and connector keying for electrical parts.
Measure the part only when it is safe to remove and the manual permits it. Worn rubber, stretched tracks, and damaged housings can differ from their original dimensions, so use measurements as a cross-check rather than the sole proof of fit.
5. Confirm what the package includes
Determine whether the listing is for one component, a pair, or a kit. Check for seals, O-rings, bearings, clips, screws, adapters, bags, cartridges, and tools. Reusing a worn seal or discovering that a required adapter is separate can turn a simple repair into a second order.
6. Separate compatibility from capability
A compatible part is designed to fit the identified model; that does not automatically mean it changes the cleaner’s rated pool size, wall coverage, filtration, voltage, or other capability. Be cautious with “upgrade” language unless the manufacturer documents the change for the exact model.
7. Check installation and safety requirements
Follow the service manual and disconnect power and pressure before inspection. Electrical, sealed-motor, structural, pressure, and safety-critical repairs may require an authorized technician. Installing an incompatible component can damage the cleaner, pool surface, plumbing, or power supply and may affect warranty coverage.
Information to send with a compatibility question
- Hydropolis product name and SKU.
- Cleaner manufacturer, family, and complete model number.
- Existing and proposed manufacturer part numbers.
- Serial-number or production range when relevant.
- Clear label and connector photographs with personal information removed.
- The dimensions or connection detail that still needs confirmation.
Do not infer compatibility from color, shape, or a product image alone. When a critical detail remains unconfirmed, pause the order until the exact match can be established.