AC Infinity Inline Filter Box with Merv 13 Filter, Whole House Hvac Filtration Kit (4in)

AC Infinity Inline Filter Box with Merv 13 Filter, Whole House Hvac Filtration Kit (4in)

Q: what filter fits perfect in the 4" filter box?

the 4" and 6" filters take 12x20x1" filters; the 8 and 10" box's take 14x20x1" filters

Q: What filter replacement is suggested for the 6" filter box? standard 20x12x1 does not fit.

Different brands of filters have different "actual" sizes. Look up the true size of the filter you are using, then check actual filter sizes for different brands that are smaller.

Q: Do the filters trap smoke from pipes or pollen and mildew?

No, you need a carbon filter for smoke

Q: Can I use a MERV 17 or HEPA filter instead of a MEV13 filter for additional filtration if they will even fit?

I use the HDX FPR 12 Ultimate Allergen with odor reduction. This filter is a higher end filter.

4.6/5

Product ID: 375478334

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Details

Brand
AC Infinity
Material
Alloy Steel
Product dimensions
59.6L x 21.4W
MERV rating
13
Compatible devices
CLOUDLINE S4

🦠MERV 13 filter traps viruses & pollen

🌬️400 CFM max airflow capacity

🛡️1mm thick cold-rolled steel & aluminum

Frequently Bought Together

AC Infinity Inline Filter Box 4" with High Efficacy Filter, Whole House HVAC Filtration Kit, Fits 4-Inch Inline Duct Fans for Fresh Air Intake and Ventilation

AC Infinity CLOUDLINE PRO S4, Quiet 4” Inline Duct Fan with Speed Controller – EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust

Description

🌬️ Elevate your air game—because fresh air is the new luxury.

COMPACT YET MIGHTY - Optimized size (12 x 20 x 1 filter) fits discreetly into your HVAC system without sacrificing powerful filtration.
EFFORTLESS MAINTENANCE - Slide lock door with soft neoprene seal offers quick, dust-free access to the filter chamber—no hassle, no mess.
SEAMLESS COMPATIBILITY - Designed to fit 4-inch inline fans like CLOUDLINE S4 and T4, supporting up to 400 CFM airflow for whole-house ventilation.
BUILT TO BRAVE THE ELEMENTS - Durable 1mm cold-rolled steel and aluminum flanges ensure long-lasting performance even in extreme weather.
BREATHE CLEANER LIVE BETTER - Includes a high-efficiency MERV 13 filter that captures viruses, dust, pollen, and mold spores for healthier indoor air.

The AC Infinity Inline Filter Box is a robust HVAC filtration solution featuring a durable 1mm cold-rolled steel and aluminum build, a high-efficiency MERV 13 filter that traps harmful particles, and a user-friendly slide lock door with neoprene seal. Compatible with 4-inch inline fans and supporting up to 400 CFM airflow, it ensures whole-house clean air circulation with easy maintenance.

Specifications

Brand Name	AC Infinity
Model Info	AC-AFB4
Product Dimensions	2.35 x 1.17 x 0.84 cm; 6.42 kg
Part Number	AC-AFB
Compatible Device	CLOUDLINE S4, CLOUDLINE T4
Material Type	Alloy Steel, Aluminum, Neoprene
Batteries Included?	No
Batteries Required?	No
Item Weight	6.42 Kilograms

Have a Question? See What Others Asked

what filter fits perfect in the 4" filter box?

What filter replacement is suggested for the 6" filter box? standard 20x12x1 does not fit.

Do the filters trap smoke from pipes or pollen and mildew?

Can I use a MERV 17 or HEPA filter instead of a MEV13 filter for additional filtration if they will even fit?

Common Questions

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TrustScore 4.5 | 7,300+ reviews

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Received my product in pristine condition. Great service overall.

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Fantastic experience overall. Will recommend to friends and family.

1 month ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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