MDF75 Waterway Dynaflo 75 / CMP 75 / Sonfarrel Filter Cartridge - 380mm x 135mm - Spatex by Magnum

Spatex MDF75 Waterway Dynaflo 75 / CMP 75 / Sonfarrel Filter Cartridge - 380mm x 135mm

Spatex MDF75 replacement pleated filter cartridge, made in New Zealand by Magnum Filters. Used in Waterway 75 telescopic Dynaflo filters and CMP 75 floating skimmers with telescoping weir, found in spas and swim spas. This cartridge replaces both the 50 sqft and 75 sqft elements in the same housing.

• Physically Stocked, unlike most "drop-shipping" websites.
• Shipped from VIC, NSW, WA, QLD

Spatex filter cartridges are manufactured by Magnum Filters in New Zealand. Magnum have been producing spa and pool filter cartridges since 1982 and supply OEM and co-branded cartridges to spa manufacturers and distributors worldwide. These are not low-grade generic filters - they use quality pleated filtration media for reliable water flow, solid dirt-holding capacity and consistent service life, and are used throughout the Australian spa industry alongside WWDG and SpaPro style filters.

Specifications

• Height: 375mm to 380mm
• Diameter: 135mm
• Centre hole: 55mm
• Top: Flat with open hole
• Bottom: Flat with open hole
• Spatex part number: sx-df75
• Magnum part number: MDF75
• Country of manufacture: New Zealand

Also Known As

This cartridge is sold under a number of OEM, distributor and aftermarket part numbers, including: MDF75, DF75, DF50, 817-0015, AFILKSC378, RFILADF75B, FAA313, FC-FAA313.

Commonly Suits

• Waterway Dynaflo 50 and 75 telescopic filters
• CMP 75 floating skimmer with telescoping weir
• Leisurerite, Maax, Oasis and Finsbury spa packs
• Spa shell niche filtration using the same element
• Sonfarrel filters

Spa brand alone is not enough to identify a filter. Manufacturers frequently change filtration systems between models and production years, so always compare your existing cartridge before ordering.

Before You Order

This cartridge replaces both 50 sqft and 75 sqft elements in the same housing, so the 75 sqft version gives you more filtration area for the same fit.

Measure the overall length, the outside diameter, the top style and the bottom connection and compare them against this listing. If you are unsure, send us a photo and the measurements of your old cartridge and we will confirm the correct replacement.

Filter Replacement Guide

Spa filters should generally be replaced every 1 to 2 years, depending on usage, water quality, chemical balance and cleaning routine. Rinsing the pleats regularly and soaking the cartridge in a dedicated filter cleaner will extend its working life between replacements.