SMALL PART. THREE IMPORTANT CHECKS.
A better fit starts at the bottle neck.
Choosing a replacement pump for a bottle you want to keep? Start with the thread, measure the tube, then check the liquid.
Featured: PEHADU black two-pump set. Check your bottle and the current listing before ordering.
THE THREE CHECKS
Keep the bottle. Check the details.
Will a 28/400 pump fit your bottle?
A diameter is a starting point. Confirm the complete neck finish before choosing a replacement top.
Read the guide 0202 / THE REACHMeasure the tube before you make the cut.
A 17 cm dip tube is not a bottle-height guarantee. Work from the pump connection and the bottle's internal depth.
Read the guide 0303 / THE EVERYDAY USEChoose the liquid first. Match the black finish second.
Separate appearance, material and formulation questions when choosing a black pump for an existing bottle.
Read the guideStart with fit, not the finish
A replacement pump for soap dispenser bottles is useful only when the closure matches the bottle. A black finish may suit your sink, but it cannot tell you whether the threads, tube reach or liquid are suitable. Begin with the bottle maker's complete neck-finish specification, then work through the three guides above.
The featured PEHADU set, ASIN B0CMQZRQRV, is the black option described for standard 28/400 threaded bottles. The seller lists two pump heads and two separate dip tubes. It is a replacement-parts set, not a pair of filled dispensers. Bottles used in lifestyle illustrations are not part of that contents list.
What the measurements can tell you
The seller's graphic labels each separate dip tube as 17 cm (6.7 in). That is a component measurement, not a maximum compatible bottle height. A bottle's outside height includes its base and neck; the tube also connects to a section below the pump closure. Measure the actual installation rather than comparing two overall heights.
Other size fields in the available product information conflict, so this guide does not publish a single verified pump length, width and height. We have not measured the parts or tested dispensing performance. Where fit depends on a missing tolerance or the exact liquid, ask for clarification before treating the pump as compatible.
A simple decision before you buy
Keep the purchase decision in three parts: a confirmed 28/400 bottle neck, a tube that can reach appropriately after installation, and a liquid supported by the product information. A familiar bottle brand or similar-looking cap is not a substitute for these checks. If one answer is unknown, keep that question open rather than assuming that a replacement will solve it.
| Check | Proceed when | Pause when |
|---|---|---|
| Neck | The bottle maker identifies the finish as 28/400. | You only know a rough diameter or bottle capacity. |
| Tube | The installed reach has been measured for your bottle. | You are comparing the 17 cm tube with outside bottle height. |
| Liquid | The intended formulation has suitable support from the supplier. | You need foaming, chemical resistance or a guaranteed viscosity range. |