CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A, 



431 



Ho. 11624. 



Nos. 11600-4. 



No. 11626. 



No. 11630. 



11602. RUBBER TUBING, Labruco, Black, heavy wall, same quality as No. 11600. 



Diameter inside, inches % % 2 $ie % 9i 



Thickness of wall, inches ^ 6 l{ 6 ^ 6 %2 %l 



Per foot (see Special Notice) $0.10 .12 .15 .28 .36 



Per 12-foot length 1.05 1.25 1.50 2.70 3.60 



11604. RUBBER TUBING, Labnico, Red, light wall, same as No. 11600, except for the color. 



Diameter inside, inches %%2 J Ke%9ie%%%%l 



Thickness of wall, inches fa %4 %4 He He %2 %2 % % % 



Per foot (see Special Notice) ... .06 .09 .12 .18 .24 .35 .50 .80 .90 1.15 

 Per 12-foot length 60 .90 1.20 1.80 2.40 3.90 5.25 



11610. RUBBER TUBING, Pressure, Black, semi-pure gum, extra heavy wall, for filter and air pump 

 connections, vacuum work, etc. Because of its flexibility this tubing is also useful for connec- 

 tions to mercury leveling bulbs, nitrometers, etc. 



Diameter inside, inches ^ 6 ^4 



Thickness of wall, inches ^ 6 ^ 6 



Per foot (see Special Notice) .50 .60 



11614. RUBBER TUBING, Pressure, cloth insertion, heavy wall, for air pump connections, etc. 



Diameter inside, inches ${$ *4 9i 6 " % 



Per foot (see Special Notice) 12 .15 .16 .18 .22 



11618. RUBBER TUBING for Gooch Crucibles, thin walled band tubing, pure gum, very elastic. 



Width outside when flat, inches 1% 1% 2% 



Width inside when flat, inches 1% 1% 2 



Per foot .25 .30 .40 



11624. TUBING, Flexible, Steel, with rubber packing, for connections to Bunsen burners, hot plates, 

 etc. It is indestructible except by acids and excess of oil, is gas tight and safe from kinking 

 or breaking. Each length is furnished with heavy rubber socket at each end. Inside diameter, 

 % inch. 



Length, inches 24 36 



Each 25 .35 



11626. TUBING, Flexible, Steel, made entirely of metal by a new process, without rubber or other pack- 



ing. It is gas tight and indestructible, except by strong acids, and will last indefinitely. In- 

 side diameter, ^4 inch per foot .30 



11627. RUBBER CONNECTORS for use with No. 11626 per pair .10 



11630. RUBBER TUBE and Bulb Expander, for stretching tubing and bulbs to facilitate attaching 

 to connection tubes, pipettes, etc .50 



