in 13 offers
The lowest price for AC Infinity Air Filter Box right now is $190.00 at The Hydro Bros, compared across 13 retailers.
The all-time low was $171.86 on 6 June 2026 — today's price is 11% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 17 Oct 2026.
AC Infinity Air Filter Box
Last updated at 17/10/2026 10:03:20
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
Free delivery
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AC Infinity Intake Air Filter 4" (AC-AFB4)
Delivery between 20–30 Oct $159
AC Infinity Air Filter Box 100 mm | Inline Intake Filter
Free delivery between Tue – Fri
AC Infinity Air Filter Box With High Efficacy Intake Filter - 100mm | 4 inch
Delivery between Tue – Thu $14.95
Optimize Air Quality with AC Infinity Filter Box, Filter Box 100 mm / 4 inch
Free delivery
AC Infinity Air Filter Box With High Efficacy Filter 4 Inch 100mm
AC Infinity Air Filter box with high efficacy filter, 100mm /4 inch
AC Infinity Inline Air Filter Box — MERV 13 Intake Particulate Filter 100 mm
Free delivery
AC Infinity Inline Air Filter Box w/ MERV Filter - 100MM (4" Inch) | 400CFM
Delivery $28.98
AC Infinity Inline Air Filter Box w/ MERV Filter - 100MM (4" Inch)
Delivery between 22–28 Oct $20.05
| Filtration Type | High efficacy filter |
| Micron Rating | 0.3-1.0 micron-sized particles |
| MERV Rating | Standard MERV filter replacements |
| Particle Size Captured | Particles like dust, dirt, lint, and odor, 0.3-1.0 micron-sized particles |
| Performance Highlights | Traps particles like dust, dirt, lint, and odor, Blocks dust and odors |
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
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
AC Infinity Intake Air Filter 4" (AC-AFB4)
Delivery between 20–30 Oct $159
AC Infinity Air Filter Box 100 mm | Inline Intake Filter
Free delivery between Tue – Fri
AC Infinity Air Filter Box With High Efficacy Intake Filter - 100mm | 4 inch
Delivery between Tue – Thu $14.95
Optimize Air Quality with AC Infinity Filter Box, Filter Box 100 mm / 4 inch
Free delivery
| Filtration Type | High efficacy filter |
| Micron Rating | 0.3-1.0 micron-sized particles |
| MERV Rating | Standard MERV filter replacements |
| Particle Size Captured | Particles like dust, dirt, lint, and odor, 0.3-1.0 micron-sized particles |
| Performance Highlights | Traps particles like dust, dirt, lint, and odor, Blocks dust and odors |
