Hello.

It can be confusing folks but, read below and what you need should make sense.

Genuine Microline products made in the U.S. with push fittings.

Look out for these on sale/on line that say “Microline comparable”.

Microline suggests to change their systems filters 6 months to annually and the membrane every 18 mos to 2 years.

Please see pics as they contain the sku numbers.

S7025 Carbon cartridge

S7028 Sediment carbon cartridge

S7206W post filter

Thank you

Randy