Line Filter
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 Ingersoll Rand F577IA 85565323 In Line Air Oil Filter  US $239.97
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 SCHROEDER RETURN LINE FILTER KF3 KF32K10SMS NIB US $225.00
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 FAIREY ARLON IN LINE HYDRAULIC FILTER SS 912 A V 0403 US $180.00
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 Schroeder Return Line Filter US $175.00
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 Lot of 2 Monnier Inc Compressed Air Line Filters Model 204 4009 4 NIB US $150.00
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 BIJUR LINE PRESSURE FILTER 19848 NEW US $150.00
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 Speedaire Combination Units Air Line Filters 3JV10 US $150.00
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 25 Pack Filter Air In Line Counter Display Jar US $139.95
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 ATLAS COPCO LINE FILTER 1613 9356 80 US $125.00
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 2 NUMATICS F607C 02A AIR LINE FILTER 1 4 NPT US $124.95
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 JUPITER PNEUMATICS AIR LINE FILTER US $120.00
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 NEW PARKER IN LINE FILTER HN4S 10CW US $119.99
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 14450 NEW Cozzini 02 018 0010 Line Filter 5A 115Vac US $101.33
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 STK 307079304 Power Line Filter Assembly US $100.00
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 MUELLER MICRO GUARD FDF 265T SUCTION LINE FILTER DRIER US $100.00
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 AMFLO 2010A 2010 A AIR LINE COMPRESSOR FILTER NEW N BOX US $99.99
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 TAISEI KOGYO VN 20B SUCTION LINE FILTER 150W 1 US $99.99
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 NEW SIEMENS POWERS AIR LINE FILTER ASSEMBLY 908 051 US $99.99
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 Speed Aire Air Line Filter 1 2 npt 4ZL45 US $99.97
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 New Schrader Bellows 12F45FBSB Air Line Filter 1 2 NPT US $89.99
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 Schrader Bellows 12F36ECSB Air Line Coalescing Filter US $89.99
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 NORGREN AIR LINE FILTER L74M 4AP QPN MAX TEMP125 10BAR US $80.00
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 Parker In Line 07F32BC Air Line Filter Regulator 150psi US $76.49
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 MONNIER 203 4102 4 OIL BARRIER AIR LINE FILTER W GUARD US $75.00
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 INGERSOLL RAND LINE FILTER GP216E 42515841 US $75.00
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 INGERSOLL RAND LINE FILTER HE216E 42515973 US $75.00
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 DUFF NORTON 1 COMPRESSED AIR LINE FILTER F500 13 NEW US $75.00
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 Parker 07F32AC 1 2 Air Line Filter S31D US $59.99
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 Moog Return Line Filter Element Lot of 3 NIB NR A722661 US $59.99
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 Alco Controls Suction Line Filter Drier ASD 28F3 NIB US $59.99
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 New 1 4 NPT Air Line Filter US $59.90
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 Schroeder SBF 9651 8Z3B Pressure Line Cartridge Filter US $55.49
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 Sullair 001382 Line Filter Element Kit US $50.00
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 13158 NEW Lenze EZN3A1500H003 Line Filter US $48.51
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 Jupiter Pneumatics 1 2 Port Size Polycarbonate Air Line Filter US $46.89
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 Pall HC9800FDP13H Pressure Line Cartridge Filter NIB US $44.99
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 Pall HC9800FKP13H Pressure Line Cartridge Filter NIB US $44.99
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 WILKERSON F18 03 SK00 3 8 Inch Modular Air Line Filter G2 US $43.70
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 Pall HC9800FKP13H Pressure Line Cartridge Filter NEW US $42.99
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 Pall HC9800FDP13H Pressure Line Cartridge Filter NEW US $42.99
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 Norgren F72G 2AN QE1 Compress Air Line Filter 1 4 Port NEW US $42.50
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 Superior F35A 3CFA Suction Line Filter Core US $60.00
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 ALCO LIQUID LINE FILTER DRIER EK305 NEW US $40.00
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 Norman Filter Co U2101 In line Cartridge Paper Filter US $39.99
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 UFI 10286 DOE Pressure Line Cartridge Fiberglass Filter US $39.99
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 ITW VORTEC LINE FILTER 701S 36A 104 3 8 US $35.00
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 HANKISON LINE FILTER COMPRESSED AIR 0731 9 S US $35.00
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 1 2 Air Line Filter Regulator with Gauge US $34.99
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 SPEEDAIRE Filter Air Line 3 8 In US $45.00
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 EMERSON COMPACT SUCTION LINE FILTER DRIER CSFD 14S9 W US $33.97
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 Norgren F73G 2AN QT1 Air Line Filter 025 1 4 150psi US $33.50
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 NORGREN COMPACT AIR LINE FILTER F01 200 A1TA LOT OF 2 US $29.99
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 Tru flate Air line filter 24 311 3 8NPT Made in USA US $29.99
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 PARKER Line Filter Dryer SLD8 3SV HH New US $29.95
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 New Tru Flate 1 4 Air Line Filter Part 24 301 US $28.00
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 10444 NEW Speedaire 4ZL38 1 4 Air Line Filter US $27.96
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 Speedaire 4ZK74 General Purpose 1 8 Inch Air Line Filter Regulator G2 US $27.50
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Activated Charcoal is an Effective Water Filtering Agent
Most gravity fed water filters, and many force fed filters, contain a charcoal filter. Charcoal is formed by the destructive distillation of wood. This yields several burnable gases, wood alcohol, acetic acid, and some other products. The solid residue resulting from this process is charcoal.
Charcoal is an odorless and tasteless solid, porous, black, and brittle. Charcoal is normally too dense to float in water, yet sometimes it does. How can this be? It is because charcoal has the remarkable ability to adsorb solids and gases. Charcoal does this so well that it can adsorb enough gases to make it float.
Activated charcoal, coal, or carbon is charcoal that has been processed to make it extra porous. Because of this, just one gram of activated carbon has a surface area of approximately 500 m2 but this could be as much as 1500 m2! Considering that it takes 454 grams to make a pound and that a tennis court has 260 m2, it is easy to see just how porous it is! This increased surface area means that more impurities will touch the charcoal as they pass by.
Charcoal is used in filters because of its ability to adsorb. This is not absorption but adsorption. "Adsorption is the concentration of a gas, liquid, or solid on the surface of a liquid or solid with which it is in contact." One cubic centimeter of charcoal has the ability to adsorb 90 cc of ammonia gas. Charcoal adsorbs other substances even better.
Pollutants in the water pass through the filter and come in contact with the activated charcoal. These substances are attracted to the charcoal by what is called van der Waals forces. Wiki says, "In physical chemistry, the van der Waals force is the attractive or repulsive forces between molecules (or between parts of the same molecule) other than those due to covalent bonds or to the electrostatic interaction of ions with one another or with neutral molecules."
It gets more technical that that but, suffice it to say, molecular forces bind some compounds to the charcoal. Activated carbon does not bind well with some chemicals. These include alcohols, glycols, ammonia, strong acids and bases, metals and most inorganics, such as lithium, sodium, iron, lead, arsenic, fluorine, and boric acid.
This is good in some ways. The minerals in water are needed in the body; drinking distilled water all the time would deplete the body of needed substances. So it is good that they are not filtered out. Also, some do not want fluorine removed from the water because of claims that it aids in dental health. However, others of these chemicals are unwanted and the filters must have other substances in them to remove these.
In conclusion, water and contaminants pass through the activated charcoal filter and, because of the filter?s porosity, the substances will likely come in contact with the carbon. The van der Waals forces will cause the substances to be attracted to the charcoal where they will remain until the filter is washed or replaced. For the contaminant, it is dead end road. For the person drinking the water, it is refreshing and healthy.
Berkey Filters are the best line of activated charcoal filter we are aware of. Check out the Travel Berkey Water Filter or another model. One amazing feature is that each set of filters they ship with can be re-cleaned to purify up to 6,000 gallons of drinking water.
In-Line Filters and Auxiliary Coolers
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