We searched high and low, far and wide to bring these ultra premium sight glasses to the masses! These will handle all the pressure your engine will put out, and are resistant to all common fluid types. These are easy to clean and have an encased o ring in the lip to ensure it stays in place while torqueing. All sight glasses are stainless bodies.
High temp rated is for applications needing temperature resistant up to 350 F
Low temp rated is for applications needing temperature resistant up to 200 F
Yes: dark fluids in tanks that may be hard to see, power steering, swirl pots, ect
No: Lighter fluids, or items such as catch cans, or just normal coolant overflow
All sight glasses are 1/2" BSPP Threads - we typically torque these to 8-10ft lbs using our weld on sight glass bungs - like any O ring type seal, you DO NOT need to crank on these to seal!
These are ordered in bulk from the manufacture to save on shipping costs, if you are in a RUSH please email us and we can get your order expedited for a small fee. Price includes weld bung!