1'' NPT Male Hex Head Stainless Steel Oil Sight Glass Liquid Level Gauge Oil Indicator Window Hydraulic Tank Sight Glass For Pump Air Compressor Gearbox (1'' NPT Male)

Why did you pick this product vs others?:I liked the idea of it being stainless steel and seemed to be made better than the factory one. I am able to ee my oil level a lot clearer now.

Great quality, stainless steel with a red bead to better see oil level.

Used on my 20 gallon air compressor

The original sight glass on my Husky air compressor was plastic. Due to tightening, the threads split and started a leak. I chose a steel sight-glass as a replacement. I installed the new glass with the O-Ring supplied, and within an hour I had oil at the bottom of the glass. I ended up getting a larger rubber washer for the steel plug and THAT fixed the leak. It's been dry for weeks now. The sight glass is perfect, you simply might need an additional gasket. I would recommend this item.

The package was delivered to the wrong address by the post office. The person who received it got in touch, and I received it. The sight glass fit correctly in my air compressor, and I am very pleased with it.

Not the best quality. Needed a replacement for a Kobalt 30 gal compressor and it worked. Threads were slightly undersized a bit but close enough. A month later, has not leaked. You would want to be careful of how hard you tightened these as they can snap.

I have a comet pressure washer pump, the plastic site glass finally broke after 10 years, bought this site glass and a 3/4 inch NPT tap, tapped the hole and screwed in the site glass and back in business

I came with the float ball and 1 didnt