AQUARIUM HEATERS 
SUBMERGIBLE—Genuine Pyrex Tube. This type of heater 
may be completely submerged or placed on the bottom of 
the aquarium. 
6 inch, 12% watt ...... $2.25 
6" inch? 25'watt'......... 2.35 
8 inch, 50 or 75 watt.... 2.45 
10 inch, 100 or 150 watt.. 2.75 
GLOW-LITE—Heater Light. A combination chill breaker 
and aquarium light to heat and illuminate a small 
aquarium of:2-3 gallon capacity. .2.0..2....sse veers soe $1.85 
WIL-NESS 77 AUTOMATIC HEATER 
Heater and thermostat combina- 
tion in one unit with adjustable 
knob and pilot light. 
Wattage range, 25-40-60 
it Plaats Ramo itre.cc Mauer OS $5.50 
Wattage range, 75-100 
10% Clone We ie eiicc ooisere.ste cere 5.75 
THERMOSTATS 
For controlling temperature in aquariums, heater should 
be plugged into the connection on thermostat cord. Use one 
of these dependable thermostats. 
Barrus Inside Adjustable Thermo- 
stat Simplex. 300 watt .............. $4.00 
Barrus Inside Adjustable Thermo- 
stat Duplex. 300 watt .............. $5.00 
Barrus Outside Adjustable Thermo- 
Stat, SOOLWAUS! aie witeecic sis as eleren sim. $6.00 
Therwostat 
These thermostats have built-in radio interference elimi- 
nators. 
The knob on the top of outside adjustable thermostat per- 
mits easy adjustment for higher or lower temperature. 
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