Custom designed by you
Custom designed by you

Custom Air Filter 3/4 inch

Your Price: $33.00
Retail Price:$109.95
Your Savings:$76.95(70%)
In Stock
Part Number:ASF_CUS.75
  • Provides maximum protection for your systems against airborne contamination
  • Saves you time and money, clean systems use less electricity, and breakdown less often
  • Includes: (1) permanent frame & replacement pads
  • 10 Year Warranty, you'll always have a filter that fits and performs perfectly
  • Maintenance: 30-90 Day refill life
  • Filter Thickness: 3/4 inch

Choose Options

Filter width help
Width fractional help
Filter length help
Length fractional help
Frame Type
Filter Media
Gasket help
Gasket Type help
Rubber Seal - Recommended for grills
Brush Seal - Recommended for filters that slide in.

Air Sponge frames are constructed of heavy-gauge aluminum and a dust grabbing, charged electrostatic screen. Each frame is made precisely to your exact filter size.

Another great feature is the patented anti-bypass seal, it insures the filter seals firmly - preventing bypass -- cleaning 100% of your air. The frame is permanent and backed by a lifetime warranty, so you'll never need to buy another!

Your Air Sponge custom air filter frame houses replaceable inserts.

Replacement is a breeze, just peel out the dirty insert and replace with a fresh one.

The Air Sponge Filter may qualify for reimbursement under your health plan and may be tax deductible if prescribed. Ask your doctor.
Click here to download a prescription form

5 Stars
Excellent Filete
I had an 10-year old A/C with a permanent filter that had been shredded due to the numerous times it had been removed and washed. Rather than attempt replacement I ordered a custom replaceable filter w/stainless steel casing using dimensions of old filter. The new filter arrangement fit perfectly and we're back in business with far better filtration. Only problem, not their fault, was the filter slid into a slot making it difficult to extract for replacement. Need to take that into consideration should future ordering of the frame be necessary. Otherwise am exceedingly pleased with service and product.
Did you find this helpful? 
Reviewed by:  from Selma, Texas. on 5/12/2013
5 Stars
bio sponge filter
been buying these filters for a number of years now and I would not use any thing else.We live on the west coast of the state have been since 1989.I was a service tech for service America for 20 years and retired now that's how I found you guys. By the way good web site you have. thanks again jim
Did you find this helpful? 
Reviewed by:  from port charlotte fla. on 4/30/2013
5 Stars
Received the filter quickly after order. The Filter is built well and looking forward to using this for our household over the year.
Did you find this helpful? 
Reviewed by:  from Danville, CA. on 2/4/2013

Clean Air Credits

33 Clean Air Credits will be rewarded to you when you buy this item.

Related Items


Biosponge Refills (6 Pack)  | For AIRTEVA & HealthSmart Furnace - AC Filters
Average Rating(98)
Custom Sized - Ships in 24 hours
 Carbon Air Filters   (2 Pack)
Average Rating(7)
Custom Sized - Ships in 24 hours
Zeolite Air Filters (2 Pack)
Average Rating(0)
Custom Sized - Ships in 24 hours

Recently Viewed Items

Browse By Category