113364 DefendAir HEPA 500 second-stage MERV 8 prefilter, 12-pack

Dri-Eaz 113364/F271 is the 12-pack of second-stage MERV 8 prefilters for the discontinued DefendAir HEPA 500 114178/F284 air scrubber. The synthetic media is rated at 30% efficiency and captures finer particles to extend the life of the primary HEPA filter. Replace filters after use to prevent cross-contamination. Do not clean or reuse them.

BUYING STATUSEXTERNAL SELLERBUY FROM LEGEND BRANDS

Part numberConfirmed

FitsDefendAir HEPA 500 air scrubber (114178 / F284)

PurchaseBuy from Legend Brands

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CHECK BEFORE ORDERING

Confirm the exact equipment version

The HEPA 500 equipment is discontinued, but Legend Brands states that filter 113364/F271 remains available for ongoing use.
Confirm 114178/F284 equipment identity, second-stage position, package quantity, contamination conditions, and current service instructions before ordering or replacement.

Part numbers

2 numbers

Current MPN113364

Other numbers113364F271

Prior numbersNone listed

Equipment fit

1 model

Fits this model

Dri-Eaz DefendAir HEPA 500 air scrubber (114178 / F284)

Revision not recorded

Check this model →

The HEPA 500 equipment is discontinued, but Legend Brands states that filter 113364/F271 remains available for ongoing use.
Confirm 114178/F284 equipment identity, second-stage position, package quantity, contamination conditions, and current service instructions before ordering or replacement.

Specifications

6 details

Component: Second-stage prefilter
Filter rating: MERV 8
Media efficiency: 30%
Package quantity: 12
Frame: Cardboard
Reuse: Do not clean or reuse; replace after use to prevent cross-contamination

Documentation

3 references

Reference

Manufacturer documentation

Used to confirm the published part details.

Aug 17, 2026

Reference

Manufacturer documentation

Used to confirm the published part details.

Aug 17, 2026

Reference

Legend Brands DefendAir HEPA 500 owner manual 07-01489J

The manufacturer manual identifies the HEPA 500 as F284 and documents the disposable prefilter positions, replacement guidance, and cross-contamination precautions.

Aug 17, 2026

Price and availability

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Available from Legend Brands

Price and stock were checked at Oct 1, 2026, 8:17 PM. Check shipping, delivery, returns, and warranty on the seller’s site.

Item: Exact 113364
Availability: in stock
Seller: Legend Brands
Support: Legend Brands handles the order

EXTERNAL SELLERLegend Brands

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