1-year limited warranty
Excluded from coupons
Earn 4900 Bullseye Bucks
Only 3 left in stock
Sold & shipped by Alkin Compressors
Contact Customer Service:
Sold & shipped by Alkin Compressors
High Pressure Air Compressor 3.7 CFM Free Air Delivery with 5000 PSI Max Air Pressure Automatic Start/Stop and Condensate Drain package 220 Volt, Single Phase, 4HP Electric Motor (18 Amps) Female Foster Quick Disconnect Fill Valve
Free Air Delivery: 3.7 CFM (In a compressed-air system, free air delivery (FAD) is the enlarged volume of air that the compressor releases into the network within a given measure of time. To determine FAD, measurements must be made of the ambient pressure, humidity and temperature present at the air inlet of the machine.) Max Air Pressure: 5000 PSI Stages: 3 Stage Compressor - The three-stage compressor provides the most consistent power output and can operate for extended periods Lubrication: Splash lubrication Motor: 4HP, 220V, Single Phase (18 Amps) Option: Automatic start/stop and condensate drain RPM: 1050 RPM (Lowest RPM HPA Compressor) Warranty: 2 Years Weight: 175 lbs Dimensions: 23 x 20 x 35 (WxLxH) inches Air Quality complies with EN 12021, Grade E and D. Ideal for use in operations requiring breathing air in accordance with EN 12021 standard and high pressure air, and are available with electric, petrol, and diesel engine drive options. Standard Features Antirust power coated vertical frame with casters P21 Purifier with Refillable Purifier Element 2nd and 3rd Stage Water Condensate & Oil Separator Intercoolers (Stainless Steel) Aftercooler (Stainless Steel) Priority Valve (Pressure Maintaining Valve) Check Valve Safety Valve at Each Stage Oil Level Sight Glass Thermal Overload Protection for Electric Motor Control Panel: On / Off Buttons and Hourmeter Power Cable Fill Times 100 cu-in. bottle from 0 to 4500 psi in 6 minutes 74 cu-ft. tank from 0 to 3000 psi in 16 minutes 98 cu-ft. tank from 3000 to 4500 psi in 6 minutes 74 cu-ft. tank from 0 to 4500 psi in 23 minutes 98 cu-ft. scba tank from 0 to 4500 psi in 30 minutes
This item is not eligible for coupon discounts
Sold & shipped by Alkin Compressors
Create an online review
The Alkin W31 Mariner is the gold standard for PCP compressors. It produces dry, dive-quality air, will fill a large 70 cu. ft. air tank in less than 10 minutes, (from zero to 4500psi), and can run continuously without overheating or the need for any water cooling. It requires none of the constant maintenance, care, and monitoring of the typical Asian-sourced units selling in the $1500 - $2500 range. It does have a 50-hour oil and filter-change interval, but at less than 10-minutes per fill, that is a 2 or 3 year event. Finally, Alkin support is unbeatable. They have a parts facility in New Jersey, they have how-to videos for everything, and when I left a question on their website, the very person in the video called me directly. With this compressor, you will be free to shoot PCPs all day. I no longer worry about shot capacity or air-hungry large-caliber / full-auto rifles.Things I would have changed:
I have a horizontal electric version which Pyramid is not currently offering. I think it is better set up and easier to service than the vertical models, although less portable.What others should know:
The automatic shut-off version is not very adjustable, (only a few psi either way), but is well worth the expense considering how fast this unit fills. It is easy to add switches for other pressures, say 3000psi as well as 4500psi.
This is a great pump it pumps up everything fastThings I would have changed:
Wouldn’t change a thingWhat others should know:
The pump is expensive but by financing it made it a lot easier to buy 18 months of payments is terrific The best way to get one of these pumps
Got a question or answer?
In-stockAir Venturi Nomad II 4500 PSI Portable PCP Compressor
Only 2 left in stockBenjamin Recharge HPA Compressor, 4500 PSI, 110V
In-stockAir Venturi Nomad III 4500 PSI Portable PCP Compressor
In-stockRefurbished Air Venturi Nomad II 4500 PSI Portable PCP Compressor
In-stockRefurbished Air Venturi Air Compressor, Electric, 4500 PSI/310 Bar
In-stockAir Venturi EC-3000 EVO Compressor by Hill
Only 5 left in stockRefurbished Air Venturi Krypton 4500 PSI Compressor
In-stockRefurbished Air Venturi Nomad III 4500 PSI Portable PCP Compressor
Only 2 left in stockBenjamin Traveler 4500 PSI Portable Compressor, Digital Gauge
Only 2 left in stockAlkin W31 Mariner HPA Compressor - Manual
Only 1 left in stockRefurbished Air Venturi EC-3000 Compressor by Hill
In-stockRefurb Air Venturi Air Compressor, Electric, 4500 PSI/310 Bar 220V Version
Buy With Confidence
Get FREE shipping on qualifying orders!
Any order $150+ with a shipping address in the contiguous US
will receive the option for free ground shipping on items sold & shipped by Pyramyd AIR during checkout.
Certain restrictions apply.
Free shipping may not be combined with a coupon unless stated otherwise.
View Shipping Info
We work hard to get all orders placed by 12 pm EST out the door within 24 hours on weekdays
because we know how excited you are to receive your order.
Weekends and holiday shipping times will vary.
During busy holidays, we step our efforts to ship all orders as fast as possible, but you may experience an additional 1-2 day delay before your order ships. This may also happen if you change your order during processing.
View Shipping Times
It's important to know that due to state and local laws, there are certain restrictions for various products.
It's up to you to research and comply with the laws in your state, county, and city.
If you live in a state or city where air guns are treated as firearms you may be able to take advantage of our FFL special program.
U.S. federal law requires that all airsoft guns are sold with a 1/4-inch blaze orange muzzle or an orange flash hider to avoid the guns being mistaken for firearms.
View Shipping Restrictions
We have a team of expert technicians and a complete repair shop that are able to service a large variety of brands/models of airguns.
Additionally, we are a factory-authorized repair/warranty station for popular brands such as
Air Arms, Air Venturi, Crosman, Diana, Seneca, and Weihrauch airguns.
Our experts also offer exclusive 10-for-$10 Test and 20-for-$20 Service, which evaluates your air gun prior to leaving our warehouse. You'll be able to add these services as you place your order.
View Service Info
Shop and purchase with confidence knowing that all of our air guns (except airsoft) are protected
by a minimum 1-year manufacturer's warranty from the date of purchase unless otherwise noted on the product page.
A warranty is provided by each manufacturer to ensure that your product is free of defect in both materials and workmanship.
View Warranty Details
Didn't get what you wanted or have a problem? We understand that sometimes things aren't right and our team is serious about resolving these issues quickly. We can often help you fix small to medium issues over the phone or email.
If you need to return an item please read our return policy.
Learn About Returns
Join Our Email List for News and Deals!
Join the Pyramyd AIR mailing list: Our e-mails are filled with new products, deals, sneak peeks, tips and tricks, contests and more - sign up today!
Text JOIN to 91256 and get $10 OFF Your Next $50+ Order!