3/4" Air Compressor Pump Oil Level Sight Glass Gauge Straight Thread w/ O-Ring

3/4" Air Compressor Pump Oil Level Sight Glass Gauge With Straight Thread & O-Ring Seal Description: This 3/4" oil level sight glass gauge features a 3/4" straight thread and comes with an O-ring seal for a secure fit. Designed as a universal fit replacement, it works with air compressor pumps, hydraulic fluid tanks, and other non-pressurized systems requiring fluid level monitoring. Compatible with applications using non-corrosive fluids only. Not suitable for pressurized systems or fluids that react with rubber, aluminum, or glass. Note: 3/4" straight thread measures approximately 1.05" in diameter    Item Specifics: Product Type: Oil Level Sight Glass Gauge Thread Size: 13/4" inch (Straight Thread) (3/4" NPS straight thread measures approximately 1.05" in diameter) Seal Type: O-Ring Seal Material: Aluminum, Glass, Rubber Compatibility: Universal fit for air compressors, hydraulic tanks, and fluid reservoirs Application: Fluid level monitoring in non-pressurized systems Restrictions: Not for use with corrosive fluids or pressurized systems