Reservoir Mounted Sight Glasses

Back Mount Styles (B, D)	Must have access to the inside of the reservoir to install.
Front Mount Styles (A, C, F)	Can be installed from the outside when reservoirs do not have access to the interior and tank wall thickness permits tapping. Can also be installed when there is access to inside the reservoir with furnished nuts. Construction allows 1/16 inch alignment adjustment to facilitate mounting.
Note	If the fluid in the reservoir is red in color, and a sight glass with a Card Type thermometer with red fluid in the thermometer is used, the temperature will not be readable. A Dial Type thermometer would be a better choice. Or a Card Type model with blue fluid may be ordered.
Pipe Thread Mount Style (E)	Installed from the outside of reservoir. Threads into pipe couplings welded in reservoir, or into thick wall reservoir tapped for pipe thread. Construction allows 1/16 inch alignment adjustment to facilitate mounting.

Model Number	Key	Length	Thermometer	Materials	Seal Material	Features	Thread 1	A	B	C
1910000329	C	5 inch	Card Type, Red Fluid	Black Epoxy-coated metal	Buna-N	Front Mount	12 mm	5	2.99	6.25
SNA254BS0U	A	10 inch	None	Black Epoxy-coated metal	Buna-N	Front Mount	1/2-13	10	8	11.25
G1615-05-A-1	C	5 inch	Card Type, Red Fluid	Aluminum	Buna-N	Front Mount	1/2-20	5	3.5	6.63
1910000272	A	5 inch	None	Black Epoxy-coated	Buna-N	Front Mount	1/2-13	5	2.99	6.26