No. 920 Smoke Gage Kit popular with professional heating engineers. Complete
 kit includes these quality components.

(1). Dwyer Smoke Gage Pump - Fast working the first known unit to conform with 
ASTM D-2156-XX standards for testing smoke 
density in flue gases from burning. Distillate fuels. Filter paper clamps 
instantly into pump inlet.

(2). Hole Plugs - Packet of 20 to fill awl holes.

(3). Smoke Chart - for easy comparison with samples taken. Laminated plastic. 
Wipes clean.

(4). Awl Pierces smoke pipe for thermometer and sampling tubes. Large,
 comfortable plastic handles.

(5). Smoke Gage Filter Paper - an exclusive, time-saving Dwyer development.
 Roll of filter paper is contained in dispenser box, 
kept clean and convenient.

(6). Metal Terminal Tube - 81/2" long, heavy gauge brass.

(7). How-to-use instructions - simple with step by step illustrations.

(8). Rubber Tubing - flexible, long lived.

(9). Spring Holders - a superior design for holding thermometer and sampling 
tubes.

(10). Kit Case - tough, durable, one piece high density polyethylene with
 living hinges and clasp. Foam liner protects contents.