FlexPak™ Backpack - Water Tank

The FlexPak™ Backpack System is a proven ground firefighting solution used globally for wildland fire control and mop‑up operations. Designed with a collapsible reservoir and a hand‑operated pump, the FlexPak™ provides dependable water or foam application in areas where hose lines and apparatus access are limited.

Constructed from heavy‑duty, ultraviolet‑resistant industrial fabric with welded seams, the backpack tank is built for durability while remaining lightweight and compact. When empty, the FlexPak™ collapses for easy storage and transport. The backpack conforms to the user’s back when filled, improving balance and comfort during extended operations.

Both models feature a rust‑proof pump system designed for easy field maintenance and operation by left‑ or right‑handed users. The FlexPak™ is available as a water‑only system or as a foam‑capable system with an air‑aspirating nozzle and foam concentrate reservoir.

Features

• Collapsible Backpack Tank: Folds down for compact storage and transport
• 5‑Gallon Capacity: Suitable for wildland fire control and mop‑up
• Heavy‑Duty Industrial Fabric: Ultraviolet‑resistant material with welded seams
• Comfortable Shoulder Harness: Padded harness with quick‑release sternum strap
• 4‑Inch Positive‑Seal Fill Cap: Allows quick refilling and secure closure
• Built‑In Debris Screen: Helps keep contaminants out of the pump
• Quick‑Connect Couplings: Simplifies pump attachment and removal
• Manual Hand Pump: Rust‑proof components designed for field use
• Left‑ or Right‑Hand Operation: Pump can be operated from either side
• Adjustable Nozzle: Supports straight stream or fog spray patterns
• Foam Capability: Supports foam application when equipped with foam components

What Is It?

The FlexPak™ Backpack System is a portable, collapsible backpack fire pump designed for manual application of water or foam during wildland and remote firefighting operations. It combines a flexible backpack reservoir with a durable hand‑pump system for reliable field performance.

How Is It Used?

The unit is worn on the back using the padded shoulder harness. The operator manually pumps water or foam through the hose and nozzle for controlled application onto brush, hotspots, or smoldering materials. After use, the tank can be collapsed to reduce storage space.

Who Uses It?

• Wildland firefighting crews
• Forestry and land management agencies
• Emergency response teams
• Ground personnel performing mop‑up and overhaul

Tank, Pump & Nozzle System

• Collapsible industrial‑fabric reservoir with welded seams
• Manual hand pump with brass cylinder and impact‑resistant components
• Field‑serviceable pump design
• Garden‑hose thread connections
• Adjustable nozzle for stream or spray
• Optional air‑aspirating foam nozzle and foam concentrate reservoir

Typical Applications

• Wildland fire control
• Mop‑up and overhaul operations
• Hotspot suppression
• Remote or off‑grid firefighting

Maintenance Information

• Rinse after use
• Drain completely before storage
• Inspect pump, fittings, and harness regularly
• Store collapsed in a clean, dry location

What’s Included

• FlexPak™ Collapsible Backpack Tank
• Manual Hand Pump
• Adjustable Fire Tip
• Shoulder Harness Assembly
• (Foam nozzle and foam concentrate reservoir included on foam‑configured systems.)