£>l?e B°5tol? 
Durifi^r. 
MANUFACTURED BY THE 
BOSTON FILTER COMPANY, 
37 Broadway, Chelsea, Mass. 
Botl8t°9 St- 
-riMf-i Nf'ftA . :;jb!pston. 
PATENT ALLOWEO. Jtye Bc>5toi) U/at<?r purifier. fep FILTERS. 
growing demand and absolute necessity of obtaining 
water pure and wholesome for drinking and other 
domestic purposes is a matter for very serious con- 
sSSX sideration. The rapid advancement of the present 
\f|W day in hygienic and sanitary research has turned the 
' attention of the medical profession to the fact that 
all zymotic diseases, such as typhoid fever, cholera, dysentery, 
diphtheria, and all other diseases of a similar character, are to 
be traced directly to contaminated or impure water; hence the 
importance of obtaining — through filtration and purification — 
water absolutely free from impurities. 
The great amount of organic and nitrogenous matter to be 
found in all city water supplies and wells produces that most 
2 dangerous element, “albuminoid of ammonia,” which feeds and 
sustains these micro-organisms that cause the above mentioned 
diseases. 
Notwithstanding these facts, perhaps no great source of dis- 
ease receives so little attention from the general public as the 
purity of its water supply. From the very fact that it enters so 
freely into our daily lives, we have become accustomed to look 
upon it with indifference, and regard it as an unpleasant or disa- 
greeable feature, rather than a positive source of danger demand- 
ing the sti'ongest measures for correction. If the public could 
once be brought to a full appreciation of the impurities which 
they are daily taking into their systems through our contaminated 
water supplies, no further argument would need be presented of 
the positive necessity of an agent which could eradicate this 
poisonous matter. 
3 The problem of obtaining a water supply absolutely pure and 
free from this dangerous contamination is solved by the BOSTON 
WATER PURIFIER, which we guarantee to furnish water freed 
from “ germs of disease,” as well as from all deleterious matter 
held in suspension, and all dangerous gases, coloring matter, or 
vegetable poisons held in solution. It is the only water purifier 
of which we have any knowledge that will remove from water 
matter held in solution. 
We have had long experience in the filtration and purifica- 
tion of water, and thoroughly comprehend and appreciate the de- 
fects of all other filters upon the market, and we do not hesitate 
to make the broad claim that the BOSTON WATER PURIFIER 
has no equal. It not only renders the water pure, but maintains 
it in an aseptic condition by storage in glass reservoirs, thus obvi- 
ating the danger of contamination from metallic oxides — un- 
healthful if not poisonous. 
4 Selection of a Filter or Purifier. 
IN the selection of a filter it is of the utmost importance to 
the purchaser that his choice should meet the requirements of 
a perfect water purifier in every sense of the word. It should 
be capable of being easily cleansed, without changing the filtering 
or purifying medium, and should preserve the filtered water in 
its purified state. 
We advance as reasons for this selection of the BOSTON 
WATER PURIFIER in preference of any others that, 
First: It is germ proof, and mechanically removes from water 
all suspended matter of whatever nature. 
Second : By filling the tube with Granulated Carbon, it re- 
moves from water — by absorption and oxidation — all poisonous 
gases, coloring matter, and all other deleterious impurities held 
in solution. The eminent scientist, Dr. Letheby, of London, in a 
5 communication to the Civil Engineer, of London, says : “ Carbon 
is the best and most effective oxidizer known, beyond question. The 
purifying power of carbon is not merely dependent on the filtra- 
tion or physical absorption of organic matter, but also on its power 
of oxidation, or as a power of bringing the oxygen dissolved or lib- 
erated in the water into chemical unison with the organic matter, 
and thus destroying it.” 
Third. The purified water is preserved in its pure state by 
storing in glass or porcelain reservoirs, avoiding the absorption of 
metallic oxides and the formation of verdigris, so common when 
either brass or copper reservoirs are used. 
The BOSTON WATER PURIFIER meets all these demands, 
and we claim that it is, beyond doubt, the most perfect water 
purifier that has ever been placed on the market. 
6 THE PURIFYING MEDIUM. 
PRICE OF EXTRA TUBE, 50 CENTS 
JT is an unglazed, porous porcelain tube, made exclusively 
of American clays, which we find peculiarly adapted 
to this purpose. The tube is ten inches in length and 
one and one-quarter inches in diameter, and is of such fine 
quality and the porosity so close as to prevent the passage 
of all micro-organisms, however minute. Their construc- 
tion is exceedingly uniform, all being alike in 
size and thickness, and the filtering power of each tube 
the same. These tubes are made by machinery which we 
have especially constructed for the purpose and upon which 
we have letters patent. Every tube is thoroughly tested 
before leaving the factory and the possibility of finding an imper- 
fect one reduced to a minimum. 
7 We claim for this purifier superior advantages over all others, 
especially in the purification of rain water, the most healthful of 
all waters for drinking purposes. 
The tube is filled with granulated carbon, prepared especially 
for us, through which the water passes after having been freed 
from all suspended impurities in its passage through the porce- 
lain tube. The carbon absorbs all organic matter and vegetable 
poisons held in solution, yielding the water sparkling in clearness 
and purity. The carbon parts with the impurities absorbed by it 
only by means of fire, and can by that means be renewed as 
often as desired. 
8 BOSTON WATER PURIFIER No. I. 
"direct DELIVERY NO. I.” 
COMPLETE WITH CONNECTIONS, $7.00. 
'"THIS cut represents a sectional view of the 
filter case and tube in position. The lower 
end is threaded and screws on to the faucet con- 
nection supplied with each filter. The water 
enters at this point, surrounds the tube, and is 
forced through the walls of the porcelain cup and 
discharged through the goose-neck at the top. 
All suspended matter is arrested and lodged on 
the outer surface of the tube, and is readily re- 
moved with a hard brush and either hot or cold 
water. 
PATENT ALLOWED. 
9 Boston Water Purifier No. I. 
DIRECT DELIVERY 
PRICE, TINNED, $7.00 ; NICKEL PLATED, $9.00. 
''"THIS cut represents our “No. i Direct 
* Delivery "screwed upon the “ Ilose- 
bib" over the sink. The lower faucet — 
when left open — allows the unfiltered 
water to flow direct from the water 
pipes. When filtered water is required 
close the lower faucet, and the water 
passes through the filter. 
To cleanse the tube, close the 
upper faucet; to shut off the 
pressure, turn the lock collar to 
the left, lift out the tube, and 
without removing it from the 
rubber gasket which holds it, 
scrub vigorously with brush and 
hot or cold water until all sed- 
iment is removed from the outer surface of the tube. 
This Filter will furnish five to ten gallons per day if kept clean. 
PATENT ALLOWED 
10 Boston Water Purifier No. 2. 
“direct DELIVERY No 2,” $13.00. 
'"PHIS cut represents the No. 2 Filter, at- 
tached to the faucet connection shown 
in the cut. It will be observed that both 
filters discharge the water into one block tin 
pipe, leading to the reservoir, which can be 
placed in the most convenient location. 
These filters are placed over the kitchen 
sink, and do not interfere with the drawing 
of unfiltered water. 
11 
PATENT ALLOWED. Boston Water Purifier No. 3. 
“DIRECT DELIVERY NO. 3," $18.00. 
'T'HIS cut represents the filters in position. 
Each filter is connected by means of 
the block tin pipe to the small collector at 
the top, from which the single pipe of block 
tin conveys the purified water to the reser- 
voir. 
The cleansing of these filters is quickly 
done, and without danger of breaking the 
tube. Turn off the pressure by closing the 
small cock at the lower end of the tube case, 
PATENT ALLOWED. 
12 unscrew the small union connecting the goose-neck with the block 
tin pipe; turn the lock collar to the left enough to free it from 
the lugs that hold it. Lift out the tube, and without removing 
it from the cap or rubber gasket which holds it, brush until clean 
with small brush accompanying each filter. 
The connections for Nos. i, 2 and 3 filters are designed for 
the Fuller Faucet, and are quickly connected without plumbing. 
13 Pressure Filters. 
BOSTON WATER PURIFIERS. 
NO. I STANDARD, PRICE $15.00, 
With Drip-cup, $16.50. 
'T'HIS cut represents our 
Standard Water Purifier 
for family use. The glass 
globe, holding two gallons, is 
screwed upon the bracket from 
which the water is drawn. 
Behind the glass globe is a 
pipe extending to the top, 
containing the automatic valve 
which stops the flow of water 
when the globe is filled. 
Drip-cup $1.50 extra. 
PATENT ALLOWED. 
14 The water enters the globe at the bottom of the valve from 
the block tin tube leading from the filter. The filter is connected 
with the Fuller Faucet over the kitchen sink, thus avoiding the 
slopping of water where the globe is situated. The globe bracket 
is screwed to the wall in the dining room, or any other conven- 
ient place. The tubes connecting the filter with the globe can 
be painted or bronzed, or hidden by the wall paper. The drip 
cup shown in the cut conveys waste water by means of a pipe 
to the sink or any other convenient outlet. All of the connec- 
tions are pure block tin. 
This is the only filter that can be so arranged, and its con- 
venience will be appreciated by those using it. 
15 GRAVITY FILTERS. 
HTHE increasing demand for a practical water purifier of the 
non-pressure or gravity style, has as yet been unsupplied in 
a convenient and compact form. We have made a special study 
of that class of filters, and feel confident that in presenting our 
gravity filter to the public we have met that demand. They are 
simple in construction, perfect in all their appointments, and offered 
at a price within the reach of all. 
This method of purification of water is even more practical 
and convenient than where the filter is attached directly to the water 
pipes. The simple weight of the water contained in the tank forc- 
ing itself through the minute pores of the porcelain tubes does not 
firmly implant the impurities on the surface of the tubes, as is done 
by the direct pressure from the mains, thus obviating the necessity of 
frequent cleansing and purification of the tubes. 
16 We guarantee our filters to be “absolutely germ proof,” and 
by our perfect system of storage of purified water to maintain it in 
an aseptic condition. No contamination can reach it from atmos- 
pheric sources; no poisonous oxides from metallic reservoirs. The 
water remains pure and sweet indefinitely in the glass receptacle. 
17 GRAVITY FILTERS. 
BOSTON WATER PURIFIER. 
"C," 8 Tubes, $15.00. 
rJ''HE accompanying cut illustrates a sec- 
tional view of our Gravity Purifier. 
The porcelain tubes are suspended by means 
of close-fitting, pure rubber gaskets, which 
are attached to the collectors by means of 
small thumb-screws on their inside. Each 
collector holds four tubes, and are connected 
by means of a small ground union to each 
other. The outlet from the collectors is also 
connected by means of the ground union to 
the block tin pipe leading from them into 
PATENT PENDING. 
18 the glass globe below, through which the purified water is discharged 
into the globe reservoirs. 
The block tin tube leading from the reservoir to the top of the 
tank allows the air in the globe to escape as it is being filled with 
water, and also admits air when the globe is being emptied, and 
serves as an overflow when the globe is filled, carrying the water back 
to its level in the tank, when filtration ceases. Thus you will 
observe that no danger can arise from overflow of water as is the 
case with other filters of the non-pressure style. 
We take great pleasure in recommending this water purifier to 
the public ; it meets with a growing demand from all parts of the 
country, especially where there is no system of public water supply. 
We cannot urge too strongly upon the attention of those for 
whom it is not safe— on account of kidney trouble — to drink water 
containing lime or other inorganic solids in solution. It will be seen 
how practical — from their position — it is to fill the tubes with 
19 granulated carbon, spongy iron, or any other absorbent or deodor- 
izing substance, whereby the water is rendered absolutely pure by 
absorption and oxidization of all organic substances held in solution. 
This is the only filter upon the market of which we have any 
knowledge where the filtered water comes in direct contact with 
purifying agents, and undergoes a double purification. Owing to the 
fact that the porcelain tube retains on its outer surface all matter of 
whatever nature, the purifying material on the inside of the tube 
retains its oxidizing powers for an almost indefinite period, and can 
be restored by placing it in the oven of the stove or range until the 
oxygenized matter is burned out, when it becomes as effective as 
when new. 
20 GRAVITY FILTERS. 
BOSTON WATER PURIFIER. 
"A” No. 4, PRICE $8. 
"pHE accompanying cut represents style A 
which contains four tubes and one col- 
lector. The tank holds five gallons of 
water, and from the position of the tubes— 
standing up instead of being suspended—will 
furnish from six to seven gallons of purified 
water per day. The style of filter will be 
found very convenient for many families, as 
it can be placed in a corner out of the way 
or in the cellar where the water will be 
kept cool. 
21 
PATENTS PENDING. GRAVITY STYLE. 
BOSTON WATER PURIFIER. 
" B," 4 TUBES, $10.00; 8 TUBES, $13.00 
accompanying cut of Style B shows 
* the filter in operation as it is hung upon 
the wall. 
The No. 4 B contains four tubes and one col- 
lector. The No. 8 B eight tubes and two col- 
lectors. The No. 4 furnishes six gallons per 
day by being filled morning, noon and evening. 
The No. 8 double that quantity. 
The tank in which the tubes and collectors are 
placed holds five gallons of water. The height 
of the water above the tubes produces the pres- 
sure which causes the flow from them. It will 
be seen, therefore, in order to obtain purified 
water in quantities it will be necessaiy to keep 
the tank filled. The bottle reservoir holds one 
gallon. 
PATENTS FENDING. 
22 GRAVITY FILTERS. 
BOSTON WATER PURIFIER. 
"C,” 4 Tubes, $12.00; 8 Tubes, $15.00; 12 Tubes, $18.00. 
STYLE C. 
rJ''HIS filter is also intended to hang at a 
convenient height, so that it will be 
easily reached to fill. The tank holds seven 
gallons. No. 4 contains four tubes will 
purify six to £even gallons per day. No. 8 C 
contains eight tubes and will purify eight to 
ten gallons per day. 
It will be observed that when the tank is 
full filtration is the most rapid ; therefore, as 
a larger amount of water is needed, the tank 
must be kept filled. 
PATENT PENDING 
23 GRAVITY FILTERS. 
BOSTON WATER PURIFIER. 
"D," 4 TUBES, $15.00; 8 TUBES, $18.00; 12 TUBES, $21.00; 
16 TUBES, $24.00. 
STYLE D. 
'T'HIS filter will be found very convenient and 
will supply more purified water with the 
same number of tubes than any of the other 
styles, on account of its height and the amount 
of water contained in the tank, which holds 
nine gallons and consequently does not require 
so frequent filling. 
We make this style with four, eight, twelve 
and sixteen tubes. It will furnish ten, fifteen 
and twenty gallons of purified water per day, 
according to number of tubes it contains. 
24 
Patenti Pending. Boston Water Purifier. 
GRAVITY SYSTEM. 
For Description see page 18.