This is a two pack of 2-Stage PUR Faucet Filter Replacements (RF-3375). They are compatible with all PUR products which use 2-Stage PUR water filter cartridges, especially the popular 2-Stage PUR Faucet Filter Mount (FM-3333B).
These PUR filters feature an initial filtration layer which reduces sediment as well as an additional filtration layer of activated carbon which removes or reduces up to 99% of pharmaceuticals, mercury, lindane, atrazine, asbestos, and the bad taste and odor of chlorine. These PUR filter replacements do not remove fluoride from your water.
The PUR RF-3375 works for up to 100 gallons - it should be replaced about every 2-3 months.
All PUR faucet filters which use the PUR RF-3375 2-Stage faucet filter can also use the PUR RF-9999 3-Stage faucet filter replacement.
A one pack of the PUR RF-3375 is also available.