Part / accessory · Whirlpool

Whirlpool FreshFlow refrigerator air filter (W10311524)

verified 2026-10-13 Specs from KitchenAid W10311524 product page (lists replaced numbers). Also known as: w10311524, air1, freshflow air filter, w10315189, w10335147, 2319308.

Specs

air filter Whirlpool FreshFlow refrigerator air filter cartridge (W10311524 / AIR1)
Whirlpool's FreshFlow odor (air) filter cartridge for the fresh-food compartment; separate from the water filter.

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Good to know

This is an air (odor) filter, not a water filter. It does not replace the refrigerator's water filter.
Replace every 6 months (Whirlpool).
Not to be confused with the Produce Preserver pouches (W10346771A), which are a different accessory.

3 models in the graph.

KitchenAid KRMF706ESS 36-inch 5-door French-door refrigerator OEM verified
FreshFlow air (odor) filter W10311524, sold separately from the water filter; replace every 6 months (Whirlpool). KitchenAid's page for this model also lists everydrop Filter 2 (EDR2RXD1) as its water filter.
KitchenAid KRSC703HPS 22.6 cu. ft. counter-depth side-by-side refrigerator with exterior ice and water OEM verified
FreshFlow air (odor) filter W10311524, sold separately from the water filter; replace every 6 months (Whirlpool). Replaces AIR1 / W10315189 / W10335147.
Maytag MRSC6636RZ 36-inch counter-depth side-by-side refrigerator with Arctic Blue interior, 20.8 cu. ft. OEM verified
FreshFlow air (odor) filter W10311524, sold separately from the water filter; replace every 6 months (Whirlpool). Replaces AIR1 / W10315189 / W10335147.

Informational only. Confirm with the manufacturer before buying or installing. Spotted a mistake? Report it.