Each time you short cycle

10" big blue filter housings

* Ideal for commercial use

if your water hardness is 5

75 lbs of resin in each cartridge

Merlin Membranes & Filter Pack VALVE Each time you short cycleMerlin Membranes & Filter Pack This Complete Merlin Membrane and Filter Pack includes: Two GE Merlin Reverse Osmosis membranes that are required for membrane replacement in the Merlin unit, plus a 17" Carbon Prefilter. These 3 filters will get your Merlin Evolution RO 1000 system working like new! For use on the Evolution RO 1000, GE Merlin, and other Watermaker systems under different branding. These Membranes and Filters are guaranteed to fit