Start by checking the manufacturer, equipment model number, and part number printed on the existing cartridge. This collection includes replacement filters for Elkay, Halsey Taylor, Oasis, and Murdock bottle filling stations. For many Elkay ezH2O units, the appropriate option is the Elkay 51300C WaterSentry Plus Filter. Oasis systems may use the Oasis 041071-001 VersaFilter II, while compatible Murdock units may use the Murdock RWF3000 Filter. Always confirm the exact model compatibility before ordering.

Replacement timing depends on the filter’s rated capacity, water quality, and daily usage. The Elkay 51300C, for example, should be replaced after 3,000 gallons or one year, whichever comes first. High-traffic schools, offices, airports, and public facilities may reach the gallon limit sooner. For more guidance, read the Elkay 51300C Filter Replacement Guide.

Contaminant reduction varies by filter. The Elkay 51300C WaterSentry Plus Filter is designed to reduce lead, chlorine taste and odor, cysts, Class I particulates, and microplastics. Facilities that specifically need PFAS reduction can consider the Elkay 71300C PFAS Filter or the Murdock RWF3000 PFAS Filter. Review each product’s specifications and certifications to select the appropriate filtration level.

Standard filters are suitable for typical bottle filling station usage, while high-capacity filters are designed for facilities with greater daily demand. The Elkay 51300C has a rated capacity of 3,000 gallons, whereas the Elkay 51600C High-Capacity Filter provides up to 6,000 gallons of filtration. A high-capacity option may reduce replacement frequency in busy schools, universities, offices, airports, and public facilities.

Many cartridges are designed for straightforward replacement, but the exact procedure depends on the equipment and filter model. The Elkay 51300C uses a quick-disconnect, quarter-turn installation design. Typically, you should disconnect power where required, shut off the water supply, remove the used cartridge, install the new filter, restore the water supply, and flush the system according to the manufacturer’s instructions. Refer to the product manual or use a qualified professional when necessary.

Available options include the Elkay 51300C, Elkay 51600C, Halsey Taylor 55898C, Oasis 041071-001 VersaFilter II, and Murdock RWF3000. Because filters are not universally interchangeable, match the replacement cartridge to your existing filter number and bottle filling station model.