Graco Ultra 450 Electric Airless Paint Sprayer, Hi-Cart, 25F508

Professional Hi-Cart Airless Sprayer for Painting Contractors

The Graco Ultra 450 Electric Airless Paint Sprayer – Hi-Cart, 25F508 combines professional airless performance with a full-height cart configuration designed for mobility around residential and commercial jobsites.

Delivering up to 0.54 GPM, 3,300 PSI and supporting airless spray tips up to .023", the Ultra 450 provides professional spraying performance in a durable Hi-Cart platform.

The 25F508 combines Graco technologies including SmartControl, WatchDog Pump Protection, FastFlush, the Endurance Vortex Piston Pump and ProConnect to help contractors maintain consistent performance while reducing downtime and maintenance.

Why Choose the Graco Ultra 450 Hi-Cart?

• Professional Hi-Cart configuration

• Maximum flow rate of 0.54 GPM

• Maximum working pressure of 3,300 PSI

• Supports airless tips up to .023"

• SmartControl with Digital Display

• WatchDog Pump Protection

• FastFlush high-flow cleaning system

• Endurance Vortex Piston Pump

• ProConnect on-the-job pump replacement

• Maintenance-free brushless motor

• Advantage Drive with hardened steel gears

• Easy Out Pump Filter

• Swivel inlet suction hose

• Contractor PC Airless Spray Gun

• RAC X LP 517 SwitchTip included

• 50 ft BlueMax II airless hose included

Hi-Cart Design for Jobsite Mobility

The defining feature of the 25F508 is its full-height Hi-Cart configuration.

Instead of carrying the sprayer between working areas, the cart design allows contractors to roll the unit around the jobsite while maintaining a comfortable working height.

The Ultra 450 Hi-Cart measures approximately:

Height: 40"
Length: 22"
Width: 20.5"
Weight: 63 lb

For contractors who regularly work on larger residential or commercial painting projects and prefer a wheeled sprayer platform, the Hi-Cart provides a practical alternative to the compact Stand configuration.

Professional Airless Performance

The Ultra 450 Hi-Cart delivers:

Maximum Flow: 0.54 GPM / 2.0 L/min
Maximum Pressure: 3,300 PSI
Maximum Tip Size: .023"

This combination makes the Ultra 450 suitable for professional painting contractors who need a compact professional electric airless sprayer with the convenience of a full-height cart.

SmartControl with Digital Display

Graco SmartControl monitors spraying conditions and adjusts motor performance to help maintain consistent pressure and spray quality.

The integrated digital display provides real-time information including:

• Spray pressure

• Gallons sprayed

• Operating hours

• Diagnostics

This gives contractors useful information for monitoring sprayer performance and maintenance.

WatchDog Pump Protection

Running an airless pump without material can cause unnecessary wear.

WatchDog Pump Protection monitors the sprayer and automatically shuts down the pump when the paint supply runs out.

This helps protect the pump and reduces unnecessary equipment wear.

Endurance Vortex Piston Pump

The Ultra 450 uses Graco's Endurance Vortex Piston Pump.

Its rotating piston design helps distribute wear across the piston rod to extend pump life.

Graco states that the Endurance Vortex pump is designed to spray 3X more gallons than the nearest competitor before requiring service.

ProConnect Pump Replacement

The ProConnect Pump Replacement System allows contractors to replace the pump directly on the jobsite.

The pump can be swapped in minutes without loose pins or small parts, helping reduce downtime when service is required.

The replacement pump for the Ultra 450 is:

Graco Endurance Vortex Piston Pump – 19D873

The corresponding Graco pump repair kit is:

Graco Pump Repair Kit – 18B260

Maintenance-Free Brushless Motor

The Ultra 450 uses a maintenance-free brushless motor designed to provide reliable professional performance without the maintenance associated with conventional motor brushes.

Combined with Graco's Advantage Drive system, the motor delivers the power required for consistent airless spraying at pressures up to 3,300 PSI.

Advantage Drive

Graco's Advantage Drive uses hardened steel gears engineered for smooth and reliable operation.

Graco backs the Advantage Drive gears with a Lifetime Warranty.

FastFlush Cleaning System

The FastFlush High-Flow Cleaning System increases fluid velocity during cleanup.

Graco states that FastFlush provides 2X faster cleaning while using half the water, helping reduce cleanup time at the end of the job.

Easy Out Pump Filter

The Easy Out Pump Filter provides a large filtering surface to help reduce tip clogs while simplifying routine filter maintenance.

Keeping the filter clean helps maintain consistent material flow and spray quality.

Swivel Inlet Suction Hose

The swivel inlet suction hose makes it easier to position the suction tube in paint containers and provides additional flexibility when working around the sprayer.

This is particularly useful with the Hi-Cart configuration when working directly from larger paint containers.

Contractor PC Airless Spray Gun

The Ultra 450 includes Graco's Contractor PC Airless Spray Gun.

Designed for professional daily use, the Contractor PC features a lighter trigger pull and Graco's ProConnect replacement cartridge, allowing the gun to be rebuilt quickly when required.

RAC X Low Pressure SwitchTip

The Ultra 450 includes a RAC X LP 517 SwitchTip and RAC X HandTite Tip Guard.

Graco RAC X Low Pressure SwitchTips allow contractors to spray at lower pressure while maintaining a professional airless finish.

Graco states that RAC X Low Pressure SwitchTips can provide:

• Up to 2X longer tip life
• Up to 50% less overspray
• Consistent professional airless finishes

The Ultra 450 supports airless tip sizes up to .023".

What's Included?

The Graco Ultra 450 Hi-Cart 25F508 includes:

• Graco Ultra 450 Hi-Cart Airless Sprayer
• Contractor PC Airless Spray Gun
• RAC X LP 517 SwitchTip
• RAC X HandTite Tip Guard
• 1/4" x 50 ft BlueMax II Airless Hose
• 4 oz TSL Throat Seal Liquid

Ultra 450 Hi-Cart vs. Stand

Both Ultra 450 configurations provide the same core spraying specifications:

Maximum Flow: 0.54 GPM
Maximum Pressure: 3,300 PSI
Maximum Tip Size: .023"
Voltage: 120V

The main difference is how the sprayer is transported and positioned on the jobsite.

Choose the Ultra 450 Hi-Cart 25F508 if:

• You prefer rolling the sprayer instead of carrying it
• You want a full-height cart configuration
• You regularly move your sprayer around larger jobsites
• You prefer working from a wheeled professional sprayer platform
• Compact vehicle storage is less important

The Hi-Cart weighs approximately 63 lb and stands 40" high.

Choose the Ultra 450 Stand 25F506 if:

• You frequently carry the sprayer between jobsites
• Lower weight is a priority
• You have limited vehicle storage space
• You prefer a compact sprayer platform

The Stand configuration weighs approximately 28 lb.

Looking for the lighter configuration? Shop the Graco Ultra 450 Stand 25F506.

Technical Specifications

Manufacturer: Graco
Model: Ultra 450
Part Number: 25F508
Configuration: Hi-Cart
Type: Professional Electric Airless Sprayer
Voltage: 120V
Maximum Flow Rate: 0.54 GPM / 2.0 L/min
Maximum Working Pressure: 3,300 PSI / 228 bar
Maximum Tip Size: .023"
Cycles Per Gallon: 700
Fluid Outlet: 1/4" NPSM
Minimum Generator Power: 3,000 W
Height: 40" / 101.6 cm
Length: 22" / 55.9 cm
Width: 20.5" / 52.1 cm
Weight: 63 lb / 28.6 kg
Sound Power Level: 100 dB(A)
Pump: Endurance Vortex Piston Pump
Replacement Pump: 19D873
Pump Repair Kit: 18B260

Frequently Asked Questions

What is the Graco Ultra 450 25F508?

The Graco Ultra 450 25F508 is a professional 120V electric airless paint sprayer featuring Graco's full-height Hi-Cart configuration. It delivers up to 0.54 GPM, 3,300 PSI and supports airless tips up to .023".

How much does the Graco Ultra 450 Hi-Cart weigh?

The 25F508 Hi-Cart weighs approximately 63 lb.

What are the dimensions of the Ultra 450 Hi-Cart?

The Ultra 450 25F508 measures approximately 40" high, 22" long and 20.5" wide.

What is the maximum tip size for the Ultra 450?

The Ultra 450 supports a maximum airless spray tip size of .023".

What is the flow rate of the Ultra 450?

The maximum flow rate is 0.54 GPM, or approximately 2.0 litres per minute.

What is the maximum pressure?

The Graco Ultra 450 has a maximum working pressure of 3,300 PSI.

What spray tip comes with the 25F508?

The Ultra 450 Hi-Cart includes a Graco RAC X LP 517 SwitchTip and RAC X HandTite Tip Guard.

What spray gun is included?

The Ultra 450 includes a Graco Contractor PC Airless Spray Gun.

How long is the included hose?

The 25F508 includes a 1/4" x 50 ft BlueMax II airless hose.

Does the Ultra 450 have SmartControl?

Yes. SmartControl monitors spraying performance and adjusts operation to help maintain consistent pressure. The digital display provides pressure, gallons, operating hours and diagnostic information.

What does WatchDog Pump Protection do?

WatchDog automatically shuts the pump down when the sprayer runs out of paint, helping prevent unnecessary pump wear.

Can the Ultra 450 pump be replaced on the jobsite?

Yes. Graco's ProConnect system allows the pump to be replaced on the jobsite in minutes.

What replacement pump does the Ultra 450 use?

Graco lists the 19D873 Endurance Vortex Piston Pump as the replacement pump for the Ultra 450.

What pump repair kit does the Ultra 450 use?

Graco lists 18B260 as the pump repair kit for the Ultra 450.

What size generator does the Ultra 450 require?

Graco specifies a minimum generator power of 3,000 watts.

What is the difference between the Ultra 450 Hi-Cart and Stand?

Both configurations provide the same 0.54 GPM maximum flow, 3,300 PSI maximum pressure and .023" maximum tip size. The primary difference is the frame. The Hi-Cart is a full-height wheeled configuration weighing approximately 63 lb, while the Stand is a compact 28 lb configuration.

Should I choose the Ultra 450 Hi-Cart or Stand?

Choose the Hi-Cart if you prefer a full-height wheeled sprayer that can be rolled around the jobsite. Choose the Stand if carrying weight, compact dimensions and vehicle storage are greater priorities.

What is included with the Graco Ultra 450 Hi-Cart 25F508?

The package includes the Ultra 450 Hi-Cart sprayer, Contractor PC gun, RAC X LP 517 SwitchTip, RAC X HandTite Tip Guard, 50 ft BlueMax II airless hose and 4 oz of TSL Throat Seal Liquid.