A/C Service - Robinair Vacumaster Vacuum Pump (3 CFM)

ROBIN AIR ROB-15300 VACUMASTER VACUUM PUMP (3 CFM)

Q: How does this compare to single-stage vacuum pumps?

The ROB-15300 two-stage design reaches 35 microns, while single-stage pumps typically achieve 115 microns or higher. This enables more complete moisture removal, faster evacuation on larger residential units, and better protection against compressor damage from residual moisture. The second stage maintains efficiency at lower pressures for improved deep-vacuum performance.

Q: What size AC systems can this pump handle?

This 3 CFM pump is specifically designed for residential air conditioning systems up to 30 tons capacity along with panel truck and RV refrigeration units. The high displacement rate makes it ideal for most residential and light commercial HVAC applications. For smaller systems under 10 tons, a 1.5 CFM pump might suffice, but the extra capacity ensures faster service calls.

Q: What maintenance does this vacuum pump require?

Regular oil changes are the primary maintenance requirement using the convenient angled drain valve for complete drainage and the sight glass for accurate level checking. Clean the intake screen periodically to prevent debris from entering the pumping chamber. Replace the internal exhaust filter as needed to maintain proper oil vapor separation and extend pump life through clean operation.

Q: Can this pump work with different refrigerant types?

Yes, the ROB-15300 is engineered for multi-refrigerant compatibility including CFCs, HCFCs, and HFCs when used with mineral oil, ester oil, alkyl benzene oil, and PAG oil lubricants. However, it cannot be used with ammonia-based systems or lithium bromide applications. It is also not suitable for A4L or other flammable refrigerants due to safety restrictions and pump design limitations.

$235.00 $285.00

Product variants

4 interest-free payments or as low as $20/mo with Affirm.

Robin Air VacuMaster 3 CFM two-stage vacuum pump with aluminum housing and brass fittings

Professional HVAC Performance - Robin Air VacuMaster Vacuum Pump (ROB-15300, 3 CFM)

Two-Stage Rotary Vane Design for Fast AC System Evacuation

The Robin Air VacuMaster ROB-15300 is a professional-grade vacuum pump engineered for air conditioning and refrigeration service. This 3 CFM two-stage pump delivers powerful vacuum capability down to 35 microns, making it the reliable choice for HVAC technicians who need thorough moisture removal and reduced evacuation time on residential AC systems up to 30 tons.

Key Performance Features

Fast System Evacuation - Two-stage rotary vane design pulls deeper vacuum faster than single-stage pumps, achieving 35 micron rating with 3 CFM displacement for thorough moisture removal from AC systems.

Professional Durability - Cast aluminum body withstands jobsite conditions while keeping weight low at 28 lbs, with sealed bearing motor for reliable startup and efficient operation across temperature ranges.

Complete Filtration System - Built-in intake screen prevents debris from entering the pumping chamber, while internal exhaust filter separates oil vapor for cleaner operation and longer pump life.

Ideal Applications

Perfect for HVAC professionals working on:

Residential air conditioning systems up to 30 tons (105 kW).
Panel truck and RV refrigeration units.
Commercial refrigeration service and maintenance.
Systems using CFCs, HCFCs, and HFCs with mineral, ester, alkyl benzene, or PAG oils.
Field service calls requiring portable, reliable vacuum performance.

ROB-15300 Technical Specifications

VacuMaster 15300 Specifications
Specification	Value
Free Air Displacement	3 CFM
Factory Micron Rating	35 microns
Pump Stages	2-stage rotary vane
Motor Size	1/3 HP
Voltage	115V 60Hz
Weight	28 lbs
Dimensions	10 x 5 x 13 in
Oil Capacity	7.5 oz (220 ml)
Intake Fittings	1/4" MFL, 3/8" MFL, 3/8" FFL x 1/2" ACME adapter
Cord Length	6 ft
Approvals	CSA Certified

Get Professional HVAC Vacuum Performance

The Robin Air VacuMaster delivers the reliability and power HVAC technicians trust for thorough system evacuation. With two-stage performance and durable construction, this vacuum pump handles demanding service calls with confidence.

Order your ROB-15300 VacuMaster vacuum pump today for faster, more complete AC system service.

Frequently Asked Questions

How does this compare to single-stage vacuum pumps?

The ROB-15300's two-stage design pulls deeper vacuum (35 microns vs 115+ microns) and removes moisture more completely than single-stage pumps, reducing evacuation time on larger systems.

What size AC systems can this pump handle?

This 3 CFM pump is designed for residential AC systems up to 30 tons (105 kW), panel trucks, and RV units. It's ideal for most residential and light commercial applications.

What maintenance does this vacuum pump require?

Regular oil changes using the angled drain valve and sight glass for level checking. The intake screen should be cleaned periodically to prevent debris buildup in the pumping chamber.

Can this pump work with different refrigerant types?

Yes, it's designed for systems using CFCs, HCFCs, and HFCs with mineral oil, ester oil, alkyl benzene oil, and PAG oil lubricants. Not for ammonia or flammable refrigerants.

About the Brand

Robinair

View All Robinair Products

Garage Supply Guys Frequently Asked Questions

If something's not working out, just let us know. Keep in mind that some items might have a restocking fee. Check the product page for the specifics.

No worries, we've got you covered. We can send replacement parts or arrange for a new delivery. Just make sure to inspect everything when it arrives and give us a heads up right away if something's off.

All the details are at the bottom of our site under Shipping & Return Policy. You'll find everything about returns, freight damage, and any brand-specific rules.

Most larger items like car lifts and heavy equipment ship free, but depending on the brand there might be freight costs. Smaller items almost always have shipping fees via UPS, USPS, FedEx, etc. We'll show you any extra costs before you check out.

Shipping estimates are just that — estimates, and they're not guaranteed. Weather, freight delays, and carrier issues can throw things off, especially with bigger items. If you're on a tight timeline for installation, it's smart to give yourself some wiggle room.

Yep! Once it ships, we'll email you the tracking info so you can keep tabs on your delivery and plan accordingly.

We always send tracking info once your order ships. If it's been more than five business days and you haven't heard anything, just shoot us a message at support@garagesupplyguys.com or hit us up through the Contact Us page. We'll figure out what's going on.

Make sure whatever you're buying will actually fit your space. That means checking ceiling height, floor space, power requirements, and whether freight delivery can even get to your location. Trust us, it's way easier to confirm these details upfront.

Read through the product details carefully, especially for heavy or specialized items. If you're not sure about fit, shipping, installation, or anything else, just ask. We'd rather help you get it right the first time.

You'll get a confirmation email right away once you place your order. For most items like car lifts, parts, and shop tools, we'll have them shipped out within five business days if they're in stock. This goes for all major brands and replacement parts.

We don't offer installation services ourselves, but we can put you in touch with qualified installers in your area who you can work out pricing with directly. We can also handle this for you after your purchase.

Just reach out to us after your purchase and we'll connect you with trusted installers in your area. You can negotiate pricing and scheduling directly with them, or we can help coordinate the whole process for you.

Some items can be installed by experienced DIYers, but larger equipment like car lifts typically require professional installation for safety and warranty reasons. Check the product specifications and manufacturer requirements before deciding.

Yes! We're authorized dealers for all the major brands we carry. This means you get full manufacturer warranties, genuine parts, and proper support. You can always verify our dealer status directly with the manufacturer if you'd like.

It means you're getting the real deal - genuine products with full manufacturer warranties, access to official support, and the peace of mind that comes with buying from a legitimate dealer. No gray market products or void warranties here.