Z1 Down River Equipment 4" Barrel Pump
Down River Equipment 4" Barrel Pump: Built for Serious Raft Inflation
The Down River Equipment 4" Barrel Pump is a high-volume manual pump built for inflating and topping off rafts, catarafts, and other river inflatables. Made in Colorado and widely used by commercial outfitters and private boaters, it combines a large 4-inch barrel with a non-collapsible Tigerflex hose and a durable, serviceable design.
Choose the Tall model for more air volume per stroke, or the Shorty when a more compact pump is easier to transport and store. Both models are rated to 6 psi and backed by a 10-year limited warranty.
Why You’ll Love the DRE 4" Barrel Pump
- High-volume 4" manual barrel pump
- Available in Tall and Shorty sizes
- Rated to 6 psi
- 6' non-collapsible Tigerflex hose
- Aluminum nozzle designed for most standard inflation valves
- Check valve equipped and military-valve compatible
- Urethane-reinforced base
- High-density polyethylene foot plate and plunger disc
- Built-in cam-strap holes for securing the pump
- Spare O-ring stored inside the pump cylinder
- Made in Colorado
- 10-year limited warranty
Specs & Features
4" High-Volume Barrel
The large 4-inch barrel moves substantial air with each stroke, making this pump well suited for the volume required by full-size rafts and catarafts.
6' Tigerflex Hose
The included 1-inch-diameter Tigerflex hose is 6 feet long and non-collapsible, giving you useful reach around the boat without a soft hose folding or pinching closed during use.
Aluminum Nozzle
The hose terminates in an aluminum nozzle designed to fit most standard inflatable-boat valves.
Check Valve Equipped
DRE equips the pump with check valves, and lists the pump as compatible with military valves.
Reinforced Base
A urethane-reinforced base adds durability where the pump meets the ground. The foot plate and plunger disc are made from high-density polyethylene.
Secure It with Cam Straps
Two 1-inch cam-strap holes are built into the foot plate, allowing the pump to be secured when your setup calls for it.
Spare O-Ring On Board
A spare O-ring is stored in the bottom of the pump cylinder, keeping an important service part with the pump instead of somewhere back at home.
Made in Colorado
Down River Equipment manufactures its 4-inch barrel pumps in its Colorado shop.
Tall vs. Shorty
Tall
The Tall model measures 26.5 inches high and has a listed volume of 220 cubic inches. Choose it when moving more air per stroke is the priority.
- Height: 26.5"
- Listed volume: 220 in³
- Weight: 6.5 lbs
- Pump efficiency: 4:1
- Maximum listed pressure: 6 psi
Shorty
The Shorty reduces overall height to 20 inches with a listed volume of 157 cubic inches. It is the more compact choice when storage space or packed dimensions matter more than maximum volume per stroke.
- Height: 20"
- Listed volume: 157 in³
- Weight: 6.5 lbs
- Pump efficiency: 4:1
- Maximum listed pressure: 6 psi
Both versions use the same 6-foot Tigerflex hose and are rated to the same maximum pressure. The primary choice is between the Tall model's greater air volume and the Shorty's more compact height.
Is the DRE 4" Barrel Pump Right for Me?
The Tall is a strong choice if you:
- Regularly inflate full-size rafts or catarafts
- Want more air volume per stroke
- Have room to carry and store a 26.5" pump
The Shorty is a strong choice if you:
- Want a more compact barrel pump
- Have limited storage space in your vehicle or river gear
- Don't mind trading some air volume per stroke for a shorter pump
Both are fully manual, so either model also makes sense when you want a capable inflation system that does not depend on batteries, an outlet, or a generator.
Product Specifications
| Product | Down River Equipment 4" Barrel Pump |
|---|---|
| Available Models | Tall / Shorty |
| Tall Height | 26.5" |
| Tall Listed Volume | 220 in³ |
| Shorty Height | 20" |
| Shorty Listed Volume | 157 in³ |
| Weight | 6.5 lbs |
| Pump Efficiency | 4:1 |
| Maximum Listed Pressure | 6 psi |
| Hose | 1" diameter x 6' Tigerflex non-collapsible hose |
| Nozzle | Aluminum |
| Foot Plate | High-density polyethylene |
| Plunger Disc | High-density polyethylene |
| Base | Urethane reinforced |
| Cam-Strap Holes | 2 holes for 1" cam straps |
| Origin | Made in Colorado |
| Warranty | 10-year limited warranty |
Frequently Asked Questions
What is a 4" barrel pump used for?
It is a high-volume manual pump intended for inflating and topping off large river inflatables such as rafts and catarafts.
What is the difference between the Tall and Shorty?
The Tall is 26.5 inches high with a listed volume of 220 cubic inches. The Shorty is 20 inches high with a listed volume of 157 cubic inches. The Tall moves more air per stroke, while the Shorty is easier to fit into tighter storage spaces.
Are the Tall and Shorty rated to the same pressure?
Yes. Down River Equipment lists both versions at a maximum pressure of 6 psi.
How long is the hose?
The included Tigerflex hose is 6 feet long and 1 inch in diameter.
Does the hose collapse or kink easily?
DRE specifically describes the Tigerflex hose as non-collapsible.
What valves does the nozzle fit?
DRE describes the aluminum nozzle as fitting most standard inflation valves. The pump is also listed as military-valve compatible.
Does it need electricity?
No. This is a completely manual barrel pump.
Is there a spare O-ring?
Yes. DRE stores a spare O-ring in the bottom of each pump cylinder.
Can I secure the pump while using or transporting it?
The foot plate has two holes sized for 1-inch cam straps.
Where is the pump made?
Down River Equipment manufactures the pump in Colorado.
What warranty does it have?
The DRE 4" Barrel Pump is backed by a 10-year limited warranty.
California Proposition 65 Warning
WARNING: This product can expose you to chemicals including diethylhexyl phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
SHIPPING
At this time, RM Rafts, LLC ships merchandise only to locations within the continental United States. The risk of loss and title for all merchandise ordered on this website pass to you when the merchandise is delivered to the shipping carrier. RM Rafts, LLC will select the most cost-effective shipping carrier at the time of purchase; you will be notified via email regarding the carrier and be provided with a tracking number and delivery instructions if applicable. All shipping prices are flat fees listed for deliveries within the Continental US only and will ship FOB Oak Hill, WV. Shipping and transit days are business days only, Monday through Friday. Depending on geographic location, most customers can expect their order in 4-7 business days. Local pickup is available in Oak Hill, WV by appointment only. Please contact sales@rockymountainrafts.com to arrange a local pickup. Payment in advance is required.
RETURNS POLICY
At RM Rafts LLC, we pride ourselves on providing you with a quality product. If upon receiving and inspecting your item you decide that you want to return it, you have 14 days from the date the shipment arrives to return it for a refund minus the shipping cost. Any additional fees associated with the purchase transaction will be deducted from amount of the refund. No refund for used or worn merchandise. Refunds and canceled orders will be issued via company check for amounts over $300. Please allow 7 – 14 days for delivery. Customers are responsible for charges associated with shipping of their orders. If you cancel your order after it has been shipped out, the appropriate amount will be deducted from the refund total to cover shipping charges. All returns should be shipped to: RM Rafts, LLC 2017 Main Street E Oak Hill, WV 25901 and must be accompanied by a Return Authorization number. For an RA#, please contact sales@rockymountainrafts.com.:
Please read carefully for conditions of refund:
IMPORTANT: Returned item should be unused, in the same box, and in exactly the same condition as you received it.
- Carefully unseal the shipping box by removing packing tape from front. Do not rip or damage shipping box.
- Please take a quick note how items are arranged in the box, and how the boat has been folded. You might need it in the event you decide to pack everything back in for a return.
- Unfold the raft on a clean surface, free of debris, sand or water. The use of a tarp or plastic is recommended.
- Inflate item for inspection. Do not throw away ANY items associated with shipping. Product must be returned in its original box.
- Carefully inspect the item and make sure you are happy with your purchase.
