A 93701 filter is not a generic under-sink cartridge. It is a purpose-built replacement filter for compatible Zip HydroTap systems, where filtration performance, correct connection and timely servicing all affect the water coming from the tap. If your unit has prompted a filter change, or you are replacing a known part number, matching the cartridge exactly is the sensible place to start.

For homes, offices, hospitality venues and shared workplaces, a HydroTap is often used all day. That makes the filter a working component rather than an occasional accessory. Selecting a genuine replacement helps maintain the system as intended and avoids the uncertainty that can come with an unverified substitute.

What is the 93701 filter?

The 93701 filter is a Zip MicroPurity 0.2 micron replacement water filter used with selected Zip HydroTap applications. Its fine filtration media is designed to reduce particulate matter and help provide clean, pleasant-tasting filtered drinking water through a compatible system.

The 0.2 micron rating is significant. A micron is a very small unit of measurement, and this level of filtration is designed for applications where higher-performance drinking-water filtration is required. It is not simply a matter of making water taste better. The cartridge is part of the wider HydroTap water-delivery system, working alongside the appliance’s internal components, plumbing and programmed filter-life monitoring.

A filter cartridge should never be chosen on micron rating alone. A cartridge may look similar, use a similar label or be described as fitting a Zip unit, but still have a different head connection, capacity or intended application. Always check the existing filter part number, your HydroTap model and the manufacturer compatibility information before ordering.

Why genuine 93701 filter fitment matters

A premium filtered-water system is engineered around its approved consumables. The filter has to seat properly, seal correctly and allow water to flow at the rate the appliance expects. An incorrect or poor-quality cartridge can cause low flow, leaks, poor water delivery or fault messages. In the worst case, it can create an avoidable service call.

Genuine components also give you certainty about what has been fitted. This matters particularly in commercial kitchens, offices and managed properties, where facilities teams need consistent maintenance records and reliable day-to-day operation. When a known OEM part number is installed, future servicing is easier to plan and diagnose.

There is also a practical difference between a compatible-looking filter and a confirmed compatible filter. HydroTap ranges have evolved over time, and not every Zip cartridge is interchangeable across every model. If the label on your current cartridge says 93701, replacing it like-for-like is usually the clearest path. If the label is missing, faded or the appliance has changed hands, confirm the model before purchasing.

What the filter does - and does not do

The 93701 MicroPurity 0.2 micron filter forms part of a high-quality drinking-water solution, but it is not a cure-all for every water issue. It does not replace a properly commissioned appliance, repair a worn valve, remove the need for cleaning, or resolve a problem caused by mains-water pressure or an incorrectly configured installation.

It should also not be relied upon to fix persistent scale issues without assessing the local water conditions and the appliance. Scale management can depend on water hardness, usage patterns and the particular HydroTap model. In some situations, a specialist may recommend additional treatment or a different filtration approach.

If your water has an unusual odour, sudden taste change, reduced flow or visible cloudiness, changing the filter may be appropriate, but it is worth considering the wider system. A filter warning, for example, is a maintenance prompt. A dripping tap, no chilled water or repeated fault code may point to a separate component that needs inspection.

When should you replace a 93701 filter?

Replace the cartridge when your compatible HydroTap indicates that its filter life is due, or in line with the service interval specified for the appliance and your site conditions. Filter life is affected by total water use and incoming-water quality. A busy office kitchen will generally place far more demand on a cartridge than a lightly used household unit.

Do not wait until the flow is noticeably weak or water quality has declined. By that point, the cartridge may already be nearing the end of its useful service life. Planned replacement protects convenience: there is no need to have staff, family or customers suddenly without their usual filtered chilled, boiling or sparkling water service.

For commercial sites, recording each filter change is worthwhile. Note the date, cartridge part number and the person or service provider who completed the work. This creates a simple maintenance history and helps facilities managers forecast the next order or scheduled service visit.

Signs that deserve a closer look

A filter-life alert is the most obvious cue, but it is not the only one. Reduced water flow, a change in taste, inconsistent dispensing or a cartridge that has been in service beyond its expected interval all warrant attention. If a fresh cartridge does not restore normal operation, do not force the issue by repeatedly removing and refitting it. The cause may be elsewhere in the unit.

Similarly, do not assume a filter change will resolve a carbonation problem. Sparkling HydroTap systems also depend on a correctly installed CO₂ cylinder, suitable gas pressure and functioning internal components. Each maintenance item has a specific job, so troubleshooting works best when it follows the symptoms rather than guesswork.

Replacing the 93701 filter correctly

Many HydroTap owners can replace an approved filter cartridge as part of routine maintenance, provided they follow the instructions for their exact model. The basic process usually involves accessing the filter compartment, removing the used cartridge as directed, fitting the new cartridge securely, resetting the filter indicator where required and flushing the system according to the manufacturer’s instructions.

Take care with the details. Make sure the cartridge is fully seated, check for leaks once water is restored and complete the flushing process before drinking the water. Flushing helps clear air and conditions the new filter media. Skipping this step can lead to spluttering water or a temporary change in taste.

If the filter cabinet is difficult to access, the unit is installed in a busy commercial area, or you are unsure whether the system has been maintained correctly, professional servicing is the better option. A technician can replace the consumable while checking for issues that are easy to miss, such as worn hoses, poor drainage, damaged fittings or overdue internal maintenance.

Buying with confidence for your HydroTap

Before ordering, read the label on the existing cartridge and compare the part number carefully. A clear photo of the filter label and appliance data plate can be useful when asking for advice. It is also helpful to know whether the unit supplies chilled, boiling, ambient or sparkling water, as this helps identify the broader system configuration.

Avoid stocking several years’ worth of cartridges unless you can store them exactly as specified. Filters are consumable components, and sensible purchasing means having a replacement ready when needed rather than holding excess stock without a maintenance plan. For high-use sites, keeping one confirmed spare on hand can prevent disruption.

KDAC Water Filtration supplies genuine replacement filters and specialist support for Zip HydroTap owners, with Sydney installation and repair capability for customers who need more than a replacement part. For online orders across Australia, checking compatibility before dispatch remains the quickest way to avoid downtime and returns.

A correctly matched 93701 filter is a small maintenance decision that supports the larger reason you chose a HydroTap in the first place: dependable filtered water, ready when people reach for the tap.