Puretec ML Series Multi Purpose Carbon Cartridge

The Puretec ML series is a pleated carbon and sediment cartridge in one. It traps sediment and reduces taste, odour and chlorine at the same time, so a single housing does the work of two. Puretec rate it as suitable for rainwater.

When to use it. Where space or budget is tight, the water is already reasonably clean, and you want better tasting water without plumbing a second housing. One grade, 10 micron, in four housing sizes.

When not to. On heavy sediment, run a dedicated sediment cartridge first and let this one polish. Used alone on dirty water it loads quickly, and you throw away good carbon along with the trapped grit.

Basic or Premium? The Premium equivalent is the DP dual purpose, which has a higher pleat count for more capacity and is rated as resistant to bacteria.

Which size? Slimline is the standard 2.5 inch diameter. Large Diameter is 4.5 inch and takes far more flow and far more dirt before it blocks, which is why whole house systems use it. The 10 inch or 20 inch is the length. Your housing decides this, so measure the old cartridge or read the housing label before ordering. Note that Puretec's Basic large diameter cartridges are coded LD, and the Premium ones MP. They fit the same housings.

Genuine Puretec cartridges. These are consumables with a service life rather than a warranty period, but if one arrives faulty or not as described, come to us first and we will do the legwork with Puretec on your behalf.

Pump Stuff is the online side of TW Farm & Electrical, a real trade business with real stores in Waihi and Thames. One housing, both jobs, on a tank water house that does not need much. Not sure which one you need? Email or call. A real person picks up.