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


Thiberg Air Pump 
A very good compact 
unit able to provide suf- 
ficient air for three 
tanks. Floor space 3% 
square inches; shipping 
weight. 3 lbs. 
WEAR. Oe, ean 2 eee $10.50 
Special Combination 
Offer 
I Columbia Pump and 
1 Junior Filter for only 
$11.75, includes 4 ft. of 
»)rubber tubing. 
Acme Junior Filter 
When the water be- 
comes milky from | 
overfeeding or gets 
otherwise stagnant, 
it is necessary to fil- 
ter the water. This 
filter is designed for 
smaller aquariums. 
Pricey each 27... $2.00 



Picci ere ~, ne i — os ie a 
Marco Air Pump 
Model A 
10 Releasers ....... Sena n dearest acem gt Rass teosg ear aes <-.SPaeDo OD 
Model B 
PME SLSR ACIS Pedi se.-t ai Me eoeedee te ee AE $30.00 
Model B-2 
SORELLE AS Gi 6 Wig: ox Act sare eriesioe ce neat ecu ceebates, $35.00 
A fine piece of workmanship; a very popu- 
lar pump. Will supply ten outlets. Takes up 
floor space, 6x4% inches. 
Standard Model 
Shipping weight, 8 lbs. 
Mareo outside filter, 
Marco water pump 


No. 6 Air stone with 1-inch cel- 
luloid stem attached. 
HaGhiic.cc. $0.35 S fOr. $1.00 
No. 6A Air stone with 8-inch 
celluloid stem. 
Hache seers: $0.60 Gil OMeaeea ss: $3.00 


No.7 Brass needle valve for ad- 
justing air flow in each outlet; 
also has tee for continued line. 
Hache. $0.60 OF LOLs ae $1.75 
Glass 
Wool 
Glass Wool for aquarium fil- 
ters 25e per carton. 

No.5 Hose clamp. These clamps 
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$0.35 | 








No. 8 Brass tee for branch con- 
nections. 
Bachizee $0.25 Dozen... $2.50 
Rubber Tubing 
No. 9 Rubber tubing to be used 
from air valves to air stones in 
the aquarium. 
Rienntteres: 6¢ 100-ft. rolls...... $5.75 
No. 10 Extra strong rubber tub- 
ing to be used for main air line. 
eT brae. 8e 

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. 
Bach... $0.35 PL OL ce. saeed, $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 
stone 



Sea Foam Air Releasers 
No, 1—1%-inch round air- 
No. 2—1-inch round airstone 1.50 
No, 83—1-inch square airstone $2.00 
and 8 airstones 
mounted on chromium plated fit- 
Nosi lye 2; 
Filter Supplies 
Best filtering charcoal, per quart.............--. $0.30 
Per, £8 lon ieee ee ee ee. 1.00 
Activated charcoal. A very high grade 
filtering compound. Will filter any 
discoloration out of water and leave it 
absolutely clear Perlquart..2 eee 50 
Ber pa llon ses See ee ee 1.840 
All-celluloid Filter 
Daily capacity, 300 gallons, 
complete with filtering material, 
Outside Pilier:..: s .... $4.80 
Inside BAUCeRe  prsscrton cements 4.30 

Celluloid Tubing 
3/16 in. diameter, 16 in. long, each 
5/16 in. diameter, 12 in. long, each... < 
1% in. diameter, 12 in long, each................ 

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 
with glass wool for filtering ...................... $3.00 















| Lil 
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 Sep = SES . $1.65 

Each 

Thermal Airpump 
Complete with directions. 
Inexpensive to operate. Guar- 
are 
be made tight without danger of | tings. The chromium plated anteed for 6 months. Hjects air 
breakage brass tubing has a 040x3/16-inch in cycles of every minute or 
: wall and an overall length of 16 more. Suitable for aquariums 
Porc GD ClatL OC Unme caesarean $0.25 | inches. up to 10 gallons. Price............ $2.98 
