Diameter: 1/2".

Replacement valve set for BHW2015000. 
Rubber washers are for use with water. 
Viton washers are needed for use with oils: BHW2000201.

Replacement rubber washers for BHW20-150-03 and BHW2015000. 
For use with water and coolant applications. 
Not for use with oils or chemicals. 

Replacement Viton washers for BHW20-150-03 and BHW2015000. 
Resist oils, fuels, lubricants and most mineral acids. 

Use for all types of liquid level verification 1/2" NPT male pipe connections. Aluminum hand wheels; EPDM gauge glass gaskets standard. Automatic ball checks help prevent the loss of fluids should the glass be broken. Rough brass, equipped with two copper guard rods Standard 1/4" needle drain valve in lower arm. Pipe size: 1/2" Glass O.D.: 5/8" Length: 12"

Aluminum body with borosilicate glass. Clear fluid-filled thermometer. Dual scale 0° to 220° F and -20° to 110° C graduations. Suitable for most hydraulic and machine oils. Dimensions: 5" x 3.37" X 6.62".

Closed-circuit sight glass liquid level gauge. Features a dial thermometer and accurate protected sensor. Stainless steel dial thermometer, 50 to 300 degrees. Borosilicate sight glass with red line on white background. For pressures up to 125 PSI, temperatures to 250 degrees F. Weight: 1 lb.

Provides front viewing of fluid. Aluminum construction. High/low markings on body. Dual-scale dial thermometer, 50° to 300° F. Suitable for use with most hydraulic oils. Height: 8".