BELDT’S AQUARIUM, 
INC. 
SAINT LOUIS, MO. 

tanks. 
square inches; 
weight, 3 lbs. 
Price 
Offer 
$11.75. 
>rubber tubing. 
overfeeding 
ter the 
Price, each 

Thiberg Air Pump 
A very good compact 
unit able to provide suf- 
ficient air for three 
Floor space 3% 
Pde eOeae cote On vas $10.50 
Special Combination 
I Columbia Pump and 
1 Junior Filter for only 
includes 4 ft. of 
Acme Junior Filter 
When the water be- 
comes milky from 
or 
otherwise stagnant, 
it is necessary to fil- 
water. 
filter is designed for 
smaller aquariums. 
a ee $2.00 
shipping 
Marco Air Pump 
Marco outside filter, 
water pump 
Marco 




No. 6 Air stone with 1-inch cel- 
luloid stem attached. 
Waele. $0.35 BL Oke eek $1.00 
No. GA Air stone with 8-inch 
celluloid stem. 
Hach ae $0.60 Ge foree--. $3.00 

_ No.7 Brass needle valve for ad- 
justing air flow in each outlet; 
also has tee for continued line. 
Hache $0.60 SaLOr eee $1.75 

No. 8 Brass tee for branch con- 
nections. 
Hic eeerass: $0.25 IDYeyAavalees $2.50 
Rubber Tubing 
No. 9 Rubber tubing to be used 
from air valves to air stones in 
the aquarium. 
Perettcwes: 6e LO0=fts rolis-- $5.75 
No. 10 Extra strong rubber tub- 
ing to be used for main air line. 
Pemtt..0 Se Bom t Cewsscsse Te per ft. 
LOO=ft, POLISH... $6.75 



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Glass Wool for aquarium fil- 
ters 25e per carton. 
$0.35 

No. 5 Hose clamp. These clamps 
are used at the end of the line and 
are very convenient. They can 
also be used instead of the No. 7 
needle valve for adjusting air. 
HWachuasss $0.35 SHEL O Dice cee $1.00 
No. 11 U channel black rubber 
for fastening to the ends of glass 
partitions; will fit glass from sin- 
gle window thickness up to 3/16- 
inch plate glass. With the aid of 
these U channel partitions may 
be made tight without danger of 
breakage. 
Price! Dern LOO Uses eereeeteteeennn == $0.25 

A fine piece of workmanship; a very popu- 
lar pump. Will supply ten outlets. 
floor space, 6x4% inches. 
Standard Model 
Shipping weight, 8 lbs. 

Per gallon 
filtering 

Takes up 
Activated charcoal. 
compound. 


Filter Supplies 
Best filtering charcoal, per quart................ $0.30 
1.00 
A very 
Will 
high grade 
filter any 
discoloration out of water and leave it 
absolutely clear. 
Per gallon 
Perrquarte oe 50 
FS EERE Ree RE I ee ee ee ee eee 1.60 
All-celluloid Filter 
Daily capacity, 300 gallons, 
complete with filtering material, 
Outsides Milter]. $4.80 
Inside Bilter see 4.30 
Mode] A 
di U)2 dota EVEN SY Ep ofa he ate ESE Dene eee ee ree ee soe 2 ee $25.00 
ee Model B Celluloid Tubing 
20 Releasers eee eeeeeeeeee cients $30.00 | 3/16 in. diameter, 16 in. long, each............ $0.20 
HAlo Ute diameter, 12 in, lone, each... 25 
Model B-2 % in. diameter, 12 in long, each................ 25 
EMIS Gi? (eR eleaiser s) maeeeee wee et ew eee ee ae 5.00 
Midget Inside Celluloid Filter 
For small aquariums, 4 inches across. Fil- 
ter body 5 inches tall. Overall length 9 inches. 
Can be used in 7 inches of water. Complete 







Ss 

Sea Foam Air Releasers 
Each 
No. 1—1%-inch round air- 
stone $2.00 
No. 2—1-inch round airstone 1.50 
No. 3—1-inch square airstone $2.00 
Nos. 1, 2, and 3 airstones are 
mounted on chromium plated fit- 
tings. The chromium plated 
brass tubing has a 040x3/16-inch 
wall and an overall length of 16 
inches. 
with glass wool for filtering 
$3.00 














ll 
Air Filters 
Air filters to keep oil and dust 
from clogging up air lines, can 
be connected with rubber tubing 
the same as needle valves should 
be placed close to the air pump. 
Each $1.65 


Thermal Airpump 
Complete with directions. 
Inexpensive to operate. Guar- 
anteed for 6 months. Ejects air 
in cycles of every minute or 
more. Suitable for aquariums 
up to’ 10 gallons, Pricet.3.. $2.98 
