The annual 7-stage reverse osmosis filter replacement set for Under-Counter Home Reverse Osmosis Systems (10") is compatible with most home units. The set includes:

• Two pieces x 10" - 5 mic Solid Pre-filter by Aqua filter (First stage / replacement every six months).
• Two pieces x 10" GAC Activated Carbon Pre-filter by Aqua filter (Second stage / replacement every six months).
• Two pieces x 10″ Activated Carbon Pre-filter with full antimicrobial action by Aqua Pure PLUS AP CLC 978 (Third stage / replacement every six months).
• One piece x 2" x 10" Post-processing Activated Carbon Filter by Aqua filter (Fifth stage / replacement every 12 months).
• One piece x 2" x 10" Trace Element Enrichment Filter by Aqua Filter.
• One piece x AIFIR 2000 Ionization Filter.

Notes:

• If you are unsure about the compatibility of this set with your system, please contact us before your purchase.
• The fourth stage (Reverse Osmosis Membrane) is usually replaced every 3-4 years and therefore is not included in this set.
• The fifth stage (2" x 10" Post-processing Activated Carbon Filter) and the sixth stage (2" x 10" Trace Element Enrichment Filter) do not include the 1/4" tube connection fittings.