Replacement Filters / Reverse Osmosis

[NorPlan]

We have a Reverse Osmosis system in use since 2011, the system is a 7 Filter setup.. The 3 main large filters that hang vertically with an outer casing are changed out yearly as suggested.. My Quandary is to find replacement filters for those 3 along with the special tool needed to loosen the canisters.. To continue going through the agent can be very pricey..The unit is from Simple Soft H2O, unable to find the Manufacturer's name...Any Help appreciated, Cheers Thanks

 

[user 4883]

The horizontal filters only need to be changed every 5 years as long as you maintain stages 1-3.
Have a look here:
http://www.freshwatersystems.com/c-238-ro-membranes.aspx

I think I have another link on a different computer, will post if I find it.