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 10 AQUARIUM FILTER MATERIAL MEDIA WET DRY FILTERS PAD $12.90 Time Remaining: 2d 23h 2m Buy It Now for only: $12.90 |
 GAIN SET OF 4 SUNSUN FILTER REPLACEMENT MEDIA PADS HW 304B $10.00 Time Remaining: 5h 24m |
 Nitrate Reducer Reduction Cut to Fit Aquarium Filter Pad 18 x 10 $5.35 Time Remaining: 27d 16h 44m Buy It Now for only: $5.35 |
 GAIN 3 HW 303B CANISTER FILTER PADS REPLACEMENT MEDIA HW 303 $8.00 Time Remaining: 5h 25m |
 NEW 10 ROLL AQUARIUM FILTER MEDIA WET DRY FILTERS PAD $12.90 Time Remaining: 2d 23h 3m Buy It Now for only: $12.90 |
 FINE 3 HW 303B CANISTER FILTER PADS REPLACEMENT MEDIA HW 303 $8.00 Time Remaining: 6h 12m |
 NEW 10 ROLL AQUARIUM FILTER MEDIA WET DRY FILTERS PAD $7.95 Time Remaining: 5d 4h 17m Buy It Now for only: $7.95 |
 54 Foam Filter Pads For Hagen Fluval 4 Plus A 186 $30.98 Time Remaining: 29d 17h 8m Buy It Now for only: $30.98 |
 FINE SET OF 3 SUNSUN FILTER REPLACEMENT MEDIA PADS HW 302 $8.00 Time Remaining: 8h 17m |
 Bulk Cut Fit Aquarium Pond Filter Pad 48 x 12 x 3 4 Thick Wet Dry Reef Tank $9.99 Time Remaining: 7d 17h 33m Buy It Now for only: $9.99 |
 FINE SET OF 3 SUNSUN PERFECT AQUATOP FILTER REPLACEMENT MEDIA PADS HW 303 B $8.00 Time Remaining: 9h 15m |
 NEW 10 ROLL AQUARIUM FILTER MEDIA WET DRY FILTERS PAD $12.00 Time Remaining: 27d 5h 33m Buy It Now for only: $12.00 |
 24 Regular Large Whisper Bio Bags Filter Cartridge Pads $29.99 Time Remaining: 28d 9h 8m Buy It Now for only: $29.99 |
 FINE SET OF 4 SUNSUN FILTER REPLACEMENT MEDIA PADS HW 304B $10.00 Time Remaining: 14h 18m |
 12 Foam Filter Pads For Hagen Fluval 204 205 304 305 $6.44 Time Remaining: 11d 11h 28m Buy It Now for only: $6.44 |
 GAIN 3 SUNSUN PERFECT CANISTER FILTER REPLACEMENT PAD HW 302 $8.00 Time Remaining: 7h 20m |
 10 AQUARIUM FILTER MATERIAL MEDIA WET DRY FILTERS PAD $7.95 Time Remaining: 21d 1h 25m Buy It Now for only: $7.95 |
 12 Foam Filter Pads For Hagen Fluval FX5 BEST DEAL $25.49 Time Remaining: 6d 17h 4m Buy It Now for only: $25.49 |
 GAIN 3 PCS HW 302 CANISTER FILTER PADS REPLACEMENT MEDIA NEW $8.00 Time Remaining: 9h 54m |
 6 Foam Filter Pads For AquaClear 110 500 Aqua Clear $13.98 Time Remaining: 21d 12h 59m Buy It Now for only: $13.98 |
 FINE 3 PCS SUNSUN EXTERNAL CANISTER FILTER REPLACEMENT PADS $8.00 Time Remaining: 11h 44m |
 12 Foam Filter Pads For Hagen Fluval 404 405 BEST DEAL $6.49 Time Remaining: 8d 20h 32m Buy It Now for only: $6.49 |
 GAIN SET OF 3 SUNSUN FILTER REPLACEMENT MEDIA PADS HW 302 $8.00 Time Remaining: 12h 21m |
 12 Eclipse Rite Size Z Filter Cartridge Pad Marineland $27.89 Time Remaining: 14d 36m Buy It Now for only: $27.89 |
 12 Foam Filter Pads For AquaClear 70 300 Aqua Clear $11.98 Time Remaining: 22d 15h 38m Buy It Now for only: $11.98 |
 GAIN SET OF 3 SUNSUN PERFECT AQUATOP FILTER REPLACEMENT MEDIA PADS HW 303 B $8.00 Time Remaining: 13h 50m |
 21 Fine Filter Pads For Hagen Fluval FX5 BEST DEAL $16.50 Time Remaining: 1d 5h 51m Buy It Now for only: $16.50 |
 GAIN 3 PCS SUNSUN EXTERNAL CANISTER FILTER REPLACEMENT PADS $8.00 Time Remaining: 14h 21m |
 Replacement Filter Pads For Jebao CF 10 PF 10 Bio Pond Filter Coarse Fine $23.99 Time Remaining: 26d 15h 39m Buy It Now for only: $23.99 |
 6 Foam Filter Pads For Hagen Fluval FX5 BEST DEAL $13.19 Time Remaining: 6d 18h Buy It Now for only: $13.19 |
 FINE 3 PCS HW 302 CANISTER FILTER PADS REPLACEMENT MEDIA NEW $8.00 Time Remaining: 14h 43m |
 12 Foam Filter Pads For AquaClear 50 200 Aqua Clear $7.94 Time Remaining: 26d 14h 24m Buy It Now for only: $7.94 |
 FINE 3 SUNSUN PERFECT CANISTER FILTER REPLACEMENT PAD HW 302 $8.00 Time Remaining: 11h 46m |
 Replacement Pads for Jebao Bio Pond Filter PF30 CF30 $43.99 Time Remaining: 7d 14h 30m Buy It Now for only: $43.99 |
 Fine Filter Media Pad for Eheim Classic 2217 600 2616175 $47.50 Time Remaining: 15d 15h 5m Buy It Now for only: $47.50 |
 GET SET OF 4 SUNSUN FILTER REPLACEMENT MEDIA PADS HW 304B $10.00 Time Remaining: 1d 10h 34m |
 24 Water Filter Polishing Pads Fluval 304 305 404 405 A244 $14.95 Time Remaining: 7d 18h 27m Buy It Now for only: $14.95 |
 GET 3 PCS SUNSUN EXTERNAL CANISTER FILTER REPLACEMENT PADS $8.00 Time Remaining: 1d 3h 6m |
 Blue Coarse Media Filter Pads for Eheim Classic 2217 2616171 sponge foam $9.88 Time Remaining: 12d 15h 31m Buy It Now for only: $9.88 |
 10 ROLL PINKY AQUARIUM MEDIA WET DRY FILTERS PADS FOR KOI PONDS BONDED BIO BALL $7.95 Time Remaining: 25d 8h 34m Buy It Now for only: $7.95 |
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 GET SET OF 3 SUNSUN PERFECT AQUATOP FILTER REPLACEMENT MEDIA PADS HW 303 B $8.00 Time Remaining: 1d 8h 49m |
 AQUEON MEDIUM BOW CARTRIDGE 6PK FILTER PAD FREE SHIP $13.39 Time Remaining: 14d 4h 52m Buy It Now for only: $13.39 |
 GET 3 PCS HW 302 CANISTER FILTER PADS REPLACEMENT MEDIA NEW $8.00 Time Remaining: 1d 6h 41m |
 Eheim Filter Pads for 2226 2228 2026 2028 2126 2128 4 White Pads plus 1 Blue Pad $9.77 Time Remaining: 21d 15h 41m Buy It Now for only: $9.77 |
 54 Foam Filter Pads For Hagen Fluval 204 205 304 305 $20.87 Time Remaining: 1d 16h 23m Buy It Now for only: $20.87 |
 GET 3 SUNSUN PERFECT CANISTER FILTER REPLACEMENT PAD HW 302 $8.00 Time Remaining: 1d 2h 37m |
 Aquarium Canister Filter Pad 3PCS Replacement for SUNSUN 302 $5.49 Time Remaining: 19d 7h 17m Buy It Now for only: $5.49 |
 CHEAP SET OF 4 SUNSUN FILTER REPLACEMENT MEDIA PADS HW 304B $10.00 Time Remaining: 2d 6h 9m |
 72 Water Filter Polishing Pads Fluval 304 305 404 405 A244 $34.95 Time Remaining: 7d 18h 30m Buy It Now for only: $34.95 |
 24 Emperor 280 400 Filter E Cartridges Pads Marineland $56.99 Time Remaining: 29d 6h 7m Buy It Now for only: $56.99 |
 GET SET OF 3 SUNSUN FILTER REPLACEMENT MEDIA PADS HW 302 $8.00 Time Remaining: 1d 3h 59m |
 BULK 10 WET DRY FILTERS POND MEDIA PADS AQUARIUM LOT $7.95 Time Remaining: 21d 9h 9m Buy It Now for only: $7.95 |
 CHEAP 3 HW 303B CANISTER FILTER PADS REPLACEMENT MEDIA HW 303 $8.00 Time Remaining: 2d 11h 44m |
 New Replacement Filter Pads Use In Jebao CF 30 UV Bio Filter Blue Black Yellow $39.00 Time Remaining: 9d 10h 31m Buy It Now for only: $39.00 |
 1500gal Compact Backwash Pond Pressured Bio Filter w 13 Watts UV Clarifier 13W $106.99 Time Remaining: 4d 15h 41m Buy It Now for only: $106.99 |
 CHEAP SET OF 3 SUNSUN FILTER REPLACEMENT MEDIA PADS HW 302 $8.00 Time Remaining: 2d 9h 18m |
 Coarse Filter Pad for SUNSUN PERFECT GRECH SUPER HW 304B 404B Canister CF 500 $3.98 Time Remaining: 21d 16h 7m Buy It Now for only: $3.98 |
 CHEAP 3 PCS SUNSUN EXTERNAL CANISTER FILTER REPLACEMENT PADS $8.00 Time Remaining: 2d 14h 9m |
 Eheim Professional 3 Prefilter Coarse Pad Fine Filter Pad Set 261670 5 Pack $9.95 Time Remaining: 22d 15h 14m Buy It Now for only: $9.95 |
 CHEAP 3 PCS HW 302 CANISTER FILTER PADS REPLACEMENT MEDIA NEW $8.00 Time Remaining: 2d 8h 48m |
 4 Foam Filter Pads For Hagen Fluval 404 405 $3.58 Time Remaining: 9d 28m Buy It Now for only: $3.58 |
 THREE 10 ROLLS PINKY AQUARIUM FILTERS WET DRY FRESH SALT WATER FILTER PAD LOT $30.95 Time Remaining: 2d 3h 36m Buy It Now for only: $30.95 |
 CHEAP SET OF 3 SUNSUN PERFECT AQUATOP FILTER REPLACEMENT MEDIA PADS HW 303 B $8.00 Time Remaining: 2d 15h |
 12 Penguin 200 330 350 Filter Cartridge C Marineland Pads $26.99 Time Remaining: 21d 11h 53m Buy It Now for only: $26.99 |
 CHEAP 3 SUNSUN PERFECT CANISTER FILTER REPLACEMENT PAD HW 302 $8.00 Time Remaining: 2d 14h 17m |
 WET AND DRY FILTER MEDIA POND PAD 10 feet x 13 X 1 $8.98 Time Remaining: 10h 2m Buy It Now for only: $8.98 |
 44 Foam Filter Pads For Hagen Fluval 404 405 BEST DEAL $22.00 Time Remaining: 8d 20h 30m Buy It Now for only: $22.00 |
 BIORB REEF ONE BIUBE FILTER SERVICE KIT REPLACEMENT FILTER PAD KIT $7.99 Time Remaining: 4d 49m |
 Aquarium Filter Pad 4PCS for SUNSUN PERFECT GRECH SUPER HW 303B Canister CF 400 $9.37 Time Remaining: 27d 15h 44m Buy It Now for only: $9.37 |
 STAR 3 PCS SUNSUN EXTERNAL CANISTER FILTER REPLACEMENT PADS $8.00 Time Remaining: 4d 6h |
 Fine Filter Media Pad for Eheim Classic 2215 350 2616155 $54.95 Time Remaining: 15d 14h 59m Buy It Now for only: $54.95 |
 Odyssea CFS500 Replacement Filter Pad Floss 4pack Blue $10.75 Time Remaining: 21d 4h 14m Buy It Now for only: $10.75 |
 NEW 10 ROLL AQUARIUM FILTER MEDIA WET DRY FRESH OR SALT WATER TANKS FILTERS PAD $6.95 Time Remaining: 21h 7m |
 Coarse Filter Pad for SUNSUN PERFECT GRECH SUPER HW 303B 403B Canister CF 400 $3.98 Time Remaining: 21d 16h 5m Buy It Now for only: $3.98 |
 STAR SET OF 4 SUNSUN FILTER REPLACEMENT MEDIA PADS HW 304B $10.00 Time Remaining: 4d 13h 39m |
 2 Layer Useful Pond Aquarium Fish Tank Biochemical Filter Sponge Foam Pads $1.99 Time Remaining: 29d 19h 15m Buy It Now for only: $1.99 |
 6 Foam Filter Pads For Hagen Fluval 404 405 406 $3.98 Time Remaining: 19d 12h 17m Buy It Now for only: $3.98 |
 STAR 3 HW 303B CANISTER FILTER PADS REPLACEMENT MEDIA HW 303 $8.00 Time Remaining: 4d 8h 25m |
 Filter Pad for Fluval Chi 3 pk Filter Media $3.12 Time Remaining: 24d 10h 53m Buy It Now for only: $3.12 |
 STAR SET OF 3 SUNSUN PERFECT AQUATOP FILTER REPLACEMENT MEDIA PADS HW 303 B $8.00 Time Remaining: 4d 12h 13m |
 2 Foam Filter Pads For AquaClear 110 500 Aqua Clear $6.58 Time Remaining: 21d 12h 49m Buy It Now for only: $6.58 |
 STAR 3 PCS HW 302 CANISTER FILTER PADS REPLACEMENT MEDIA NEW $8.00 Time Remaining: 4d 8h 52m |
 6 Foam Filter Pads For Hagen Fluval 204 205 304 305 $3.89 Time Remaining: 21d 7h 39m Buy It Now for only: $3.89 |
 FOUR 10 ROLLS PINKY AQUARIUM FILTERS WET DRY FRESH SALT WATER FILTER PAD LOT $39.95 Time Remaining: 2d 3h 44m Buy It Now for only: $39.95 |
 STAR SET OF 3 SUNSUN FILTER REPLACEMENT MEDIA PADS HW 302 $8.00 Time Remaining: 4d 12h 25m |
 Blue Bonded Bulk Cut Fit Aquarium Pond Filter Pad 12sf $17.95 Time Remaining: 25d 11h 54m Buy It Now for only: $17.95 |
 DEEP BLUE BLUE PHOSPHATE REDUCER FILTER PAD 18 X 10 NEW FREE SHIPPING $7.99 Time Remaining: 4d 5h 52m Buy It Now for only: $9.99 |
 SET OF 4 SUNSUN PERFECT AQUATOP FILTER REPLACEMENT PADS HW 304A HW 304B CF 500 $9.98 Time Remaining: 15d 11h 17m Buy It Now for only: $9.98 |
 AQUEON MINI SMALL BOW CARTRIDGE 6PK FILTER PAD FREESHIP $11.59 Time Remaining: 14d 6h 55m Buy It Now for only: $11.59 |
 STAR 3 SUNSUN PERFECT CANISTER FILTER REPLACEMENT PAD HW 302 $8.00 Time Remaining: 4d 6h 30m |
 Eheim Ecco 2232 2234 2236 3 pk Coarse Filter Pad Media $9.47 Time Remaining: 29d 10h 38m Buy It Now for only: $9.47 |
 4 XIN YOU REPLACEMENT FILTER PADS Fits Any Jebo Filters 828 838 829 839 $6.99 Time Remaining: 4d 12h 29m Buy It Now for only: $8.95 |
 1 Foam Filter Pad For AquaClear 110 500 Aqua Clear $3.99 Time Remaining: 1d 5h 55m Buy It Now for only: $3.99 |
 Blue Coarse Media Filter Pads for Eheim Classic 2215 350 2616151 sponge foam $12.95 Time Remaining: 12d 15h 15m Buy It Now for only: $12.95 |
 AQUA ZONE AMMONIA REDUCER FILTER PAD AQUARIUM 18 X 10 NEW FREE SHIPPING $6.99 Time Remaining: 4d 5h 15m Buy It Now for only: $8.49 |
 12 Foam Filter Pads For Hagen Fluval 3 Plus BEST DEAL $8.49 Time Remaining: 6d 11h 4m Buy It Now for only: $8.49 |
 AQUAZONE AMMONIA REDUCER FILTER PAD AQUARIUM 18 X 10 NEW FREE SHIPPING $7.49 Time Remaining: 4d 14h 51m Buy It Now for only: $8.49 |
 Aquarium Fish Pond Tank Pump Filter Sponge Foam Mat Pad $3.99 Time Remaining: 2d 23h 59m Buy It Now for only: $3.99 |
Filter Pads
Air Filters-A Healthy HVAC System and Indoor Air
The filter in your HVAC system has two jobs. It stops undesired particles from entering the ductwork and passing over the internal components, namely the coils. The second job is to clean the air by removing dust and airborne particles which improves the indoor air quality. Modern buildings are constructed to minimize natural ventilation because they seal all the construction cracks and gaps. Have you noticed a lot of dust in your house or office? Maybe smells and odors linger longer than you want them to? Let's talk filters.
Filter Ratings
Any filter you buy will have something called a MERV Rating. MERV stands for Minimum Efficiency Reporting Values. The MERV rating is an industry-standard system for rating the minimum efficiency of air filters. The MERV rating is a scale from 1 to 20, with 1 being the least effective designation and 20 the most effective. A very economical fiberglass filter would have a MERV rating of 3 or 4, and only traps the largest of airborne particles which generally is bad for the HVAC system and the indoor air quality. A more efficient filter with a MERV rating of 20 will trap almost all particles. As the MERV rating increases, so does the filter effectiveness. If you're into the more formal definition, here you go:
MERV 20 Particle Size Filtered = < 0.3 microns Used in Industrial Cleanrooms
MERV 16 Particle Size Filtered = 0.3 - 1.0 microns Used in Operating Rooms
MERV 12 Particle Size Filtered = 1.0 - 3.0 microns Used in High Performance Residential
MERV 8 Particle Size Filtered = 3.0 - 10.0 microns Used in Average Commercial
MERV 4 Particle Size Filtered = >10.0 microns Filters out small rocks
Residential Filters
Most home HVAC systems tend to use the lower end filters, MERV 4 or so. While these are the most economical, they actually do little more than stop pollen, dust mites and carpet fibers. Perhaps you have noticed dust accumulating on the horizontal surfaces of your home. Unless you keep your windows open a lot, the dust is a side effect of poor HVAC filtration. If you want to reduce the amount of dust, step up to a MERV 10 or so.
An easy way to pick your filter is by knowing what you want to filter out of the air. Some examples are:
*MERV 5 to 6 - Lint & Heavy Dust Particles
*MERV 8 or 10 - Settling/Average Dust Particles, Mold Spores, Dust Mite Debris, Pet Dander, Pollen
*MERV 11 - Suspended/Fine Dust Particles, Mold Spores, Dust Mite Debris, Pet Dander, Pollen, Auto Emissions
*MERV 12 - Suspended/Fine Dust Particles, Mold Spores, Dust Mite Debris, Pet Dander, Pollen, Auto Emissions, Bacteria
*MERV 13 - Suspended/Fine Dust Particles, Mold Spores, Dust Mite Debris, Pet Dander, Pollen, Auto Emissions, Bacteria, Sub-Pollen Particles, Pollution, Most Viruses
Resist the temptation to upgrade your filter beyond MERV 12. The supply fan for your HVAC system may not be able to overcome the resistance (pressure drop) these filters require. Remember that the resistance of the filter will steadily increase as it gets dirty which will decrease your systems air flow. A good test is to measure the air temperature at one of the supply registers before you upgrade the filter. Then remove the filter and measure the temperature while there is no filter installed. Compare it to the first measurement. The two temperatures should be very close. The last part of the test is to measure the temperature after installing your new filter. If there is a change beyond 3 degrees, you will want to monitor the HVAC systems performance and note if it still heats or cools your home adequately.
Types of Filters
The size of the fan in your HVAC system determines the optimum filter type you can install. The proper filter for your furnace will maximize the particles removed from the air and minimize the loss of efficiency. Below are the most popular types of air filters and a brief description.
* HEPA Filter: Normally not used in residential applications due to the pressure drop, HEPA filters are among the most efficient filters on the market. They operate at an efficiency rate of over 99 percent and remove almost all of the bacteria, most tobacco smoke, cooking oil and sneeze droplets in the air.
* Charcoal Air Filter: This is a filter with carbon deposited inside the filtering media. Also known as activated carbon filter. Charcoal filters are ideal for the removal of odors caused by tobacco smoke, chemicals, and gases.
* Pleated Filter: The pleated filter is the best filter for most residential applications. It is a good option for efficiently removing particles from the air. The filter material is pleated, or folded, in order to increase its overall surface area and consequently trap more particles. The pleats will also increase the life of the filter.
* Electrostatic/Electronic Filter: Electrostatic filters are typically provided as an upgrade when you purchase a new air handling unit. They are a great way to improve air quality without decreasing the efficiency of your fan. Basically an electrostatic field is produced across the filter which attracts airborne particles. This is similar to the bug zapper you might have in your back yard. Since the filter material is relatively thin, airflow reduction caused by electrostatic filters is minimal.
* Bag Filters: This type of filter is not used in residential applications. It is installed in a rack which houses multiple bags of filter media. The bags come in various MERV ratings which makes this a good choice for hospitals or high-end commercial applications.
Value Added Features
You can also find filters with baking soda (Arm & Hammer), antimicrobial properties, pre-filter pad or odor control properties. While these features do not effect the MERV rating, they can be used to enhance the filter's effectiveness.
About the Author
I am a professional engineer with over 30 years of design experience relating to plumbing and mechanical systems. Visit the Pro Energy & HVAC site.
Can I filter home brew and still bottle condition?
Thinking about making beer. Been doing wines for a while now and I use a minijet filter before bottling.
Will the coarse filter pads strip the yeast out of the beer and render bottle conditioning impossible?
If you are making beer, the addition of "Irish Moss" at the rate of 2 tsp per 5 gallon batch 5 min. before the end of the boil will aid in giving you a "clear" beer. After the boil is complete
you need to chill the wort as quickly as possible to fermentaion temperature. These 2 techniques will give you a
clear beer.
Bio Filtration & Fish Tank Filter Pad Cleaning