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Alpha AIR-680UW Underwater Pneumatic Polisher
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At a Glance
Quick Decision Guide
Maximum Speed
4,000 RPM
Air Pressure
85 PSI
Air Consumption
15 CFM
Spindle
5/8"-11
Underwater Reach
27 ft. Flexible Vacuum Hose
Water Feed
Central Water-Feed System
Included Pad Size
7"
Tool Weight
2.64 lbs
Why Choose This Product
Key Benefits
Underwater Operation
Flexible 27 ft vacuum hose extends reach across pool applications
Consistent Water Delivery
Central feed supplies water regardless of tool position
Wet Polishing Versatility
Operates without the vacuum hose for conventional wet use
Extended Working Range
Includes 15 ft supply hoses and a separate 30 ft air hose
All-Weather Flexibility
Hybrid hoses remain flexible from -40°F to 140°F
Improved Control
2.64 lb tool includes a reversible side handle and C-handle
Plaster Polishing Kit
Includes a 7" backer and #50 and #100 PlasterKing pads
Simplified Maintenance
Accessible oil port supports routine pneumatic tool care
Product Information
Product Details
Specifications
Brand
Alpha®
Part Number
AIR-680UW
UPC
749173430169
Product Type
Underwater Pneumatic Polisher
Maximum Speed
4,000 RPM
Air Pressure
85 PSI (6 Bar)
Air Consumption
15 CFM (425 L/min)
Spindle
5/8"-11
Air Inlet
1/4" BSPP
Water Inlet
1/8" BSPP
Water Feed
Central Water-Feed System
Recommended For
Underwater Wet Polishing, Drilling & Profiling
Wet Polishing Use
Yes - Can Be Used Without Vacuum Hose
Tool Weight
2.64 lbs (1.2 kg)
Air Supply Hose
15 ft. (4.5 m)
Water Supply Hose
15 ft. (4.5 m)
Additional Air Hose
30 ft. (9.0 m)
Flexible Vacuum Hose
27 ft. (8.1 m)
Hose Material
Hybrid Flexible Material
Hose Temperature Range
-40°F to +140°F (-40°C to +60°C)
Included Backer Pad
7" Rotary Backer Pad (MP758HL)
Included Polishing Pads
7" PlasterKing #50 & #100
Included Handles
Reversible Side Handle & C-Handle
Included Wrench
19 mm / 22 mm Double End Wrench
Water Connection
Quick Connector with Shut-Off Valve
Maintenance
Oil Port & Rust Inhibitor Oil
Warranty
1 Year Tool Warranty
About This Product
Pneumatic Polisher for Underwater Applications
The Alpha® AIR-680UW is a high-performance pneumatic polisher for underwater polishing and grinding. Its 27 ft flexible vacuum hose provides working range across most pool sizes, making the tool suitable as a pneumatic buffer for submerged plaster surfaces. It can also operate without the vacuum hose for conventional wet polishing.
Central Water Feed for Plaster Polishing
The central water-feed system supplies water regardless of tool position to support consistent plaster polishing. The AIR-680UW operates at a maximum no-load speed of 4,000 RPM, consumes 15 CFM at 85 PSI, and uses a 5/8"-11 spindle for compatible polishing, grinding, drilling, and profiling accessories.
All-Weather Hose System
The tool includes 15 ft air and water supply hoses, a 30 ft air hose, and the 27 ft flexible vacuum hose. Its hybrid air and water hoses remain flexible from -40°F to 140°F (-40°C to 60°C), providing an extended working range across varying jobsite conditions.
Included Plaster Polishing Accessories
The AIR-680UW includes a 7" MP758HL rotary backer pad plus 7" #50 and #100 PlasterKing pads. A reversible side handle and C-handle provide additional control, while the included wrench assists with accessory removal. An accessible oil port supports routine pneumatic tool maintenance.
Product Resources
Documentation & Downloads
Common Questions
Frequently Asked Questions
Can the Alpha AIR-680UW be used underwater?
Yes. The pneumatic polisher is designed for underwater polishing and grinding and includes a 27 ft flexible vacuum hose for working across most pool sizes.
Can the AIR-680UW perform conventional wet polishing?
Yes. The tool can operate without the vacuum hose for standard wet polishing applications.
What air supply does the AIR-680UW require?
The polisher requires 85 PSI (6 bar) and consumes 15 CFM (425 L/min).
What is the maximum speed of the AIR-680UW?
The pneumatic buffer has a maximum no-load speed of 4,000 RPM.
How does the AIR-680UW supply water while polishing?
Its central water-feed distribution system supplies water regardless of tool position during underwater and conventional wet polishing.
Which polishing accessories are included?
The AIR-680UW includes one 7" MP758HL rotary backer pad, one 7" #50 PlasterKing pad, and one 7" #100 PlasterKing pad.
How long are the included hoses?
The tool includes 15 ft air and water supply hoses, a separate 30 ft air hose, and a 27 ft flexible vacuum hose.
What spindle size does the AIR-680UW use?
The AIR-680UW uses a 5/8"-11 spindle for compatible polishing and grinding accessories.