Can the exhaust fitting (the big red plastic cap) accept a pipe fitting?

The exhaust fitting does not accept a standard NPT fitting, the exhaust female thread is 7/8" in dia and 16 tpi.7/8" ID lies between pipe size 1/2 and 3/4

Can you tell the rated hp for this pump? I need one to easily keep 11 lbs vacuum using a pressure guage. Thanks!

Bonnie - 1/3 hp. It will hold 28 to 30in Hg in smaller sealed systems, such as automotive AC. Note that vacuum in this unit is constant and increases up to about 30in Hg. The equivalent in PSIa (a = absolute) for 30in Hg is roughly 15 PSIa. Note also that you will require a vacuum gauge to monitor vacuum; not a pressure gauge. Hope that helps.

Can i use different brand oil? Or has to be same brand?

Any brand of vacuum pump oil can be used.

What is the Warranty on this pump?

It has a Limited Warranty for 1yr from dat of purchase

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Robinair 15500 VacuMaster Economy Vacuum Pump for Air Conditioning and Refrigeration Service; 2-Stage Pump, 5 CFM Free Air Displacement, 1/3HP 115V/60HZ Motor, 35 Micron Rating

Product ID: 82437973

Details

Brand
Robinair
Color
Red
Global Trade Identification Number
Item Weight
21 Pounds
Manufacturer
Robinair
Material
Aluminum

💨5 CFM free air displacement

⚙️2-stage rotary vane power

❄️35 micron ultra-high vacuum

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MOP$4484

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Description

⚡ Evacuate faster, work smarter, stay ahead.

RAPID 5 CFM AIRFLOW - High pumping capacity means faster moisture removal and quicker system prep.
ULTRA HIGH VACUUM RATING - Achieve a deep 35 micron vacuum to ensure flawless A/C and refrigeration performance.
ERGONOMIC SURE GRIP HANDLE - Stay cool and comfortable on the move with a molded handle designed for easy transport.
PRECISION 2 STAGE ROTARY VANE - Engineered for powerful, quiet, and efficient evacuation—cut your job time down.
COMPACT DURABLE ALUMINUM BUILD - Lightweight yet rugged—perfect for professionals who demand portability without compromise.

The Robinair 15500 VacuMaster Economy Vacuum Pump is a professional-grade, 2-stage rotary vane pump delivering 5 CFM free air displacement and a 35 micron vacuum rating. Designed specifically for air conditioning and refrigeration service, it features a thermally protected 1/3 HP motor, durable aluminum housing, and ergonomic handle for easy transport. Its advanced filtration system and heat-dissipating fins ensure reliable, long-lasting performance, making it the go-to choice for HVAC-R pros aiming to maximize efficiency and precision.

Specifications

ASIN	B000O1C47M
Best Sellers Rank	#30,476 in Automotive ( See Top 100 in Automotive ) #22 in Air Conditioning Vacuum Pumps
Brand	Robinair
Customer Reviews	4.6 4.6 out of 5 stars (1,424)
Date First Available	April 2, 2004
Is Discontinued By Manufacturer	No
Item Weight	21 pounds
Item model number	15500
Manufacturer	Robinair
Manufacturer Part Number	15500
Model	15500 Vac Pump
Safety Rating	Não aplicavel
Voltage	115 Volts
Wattage	700 watts

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