









VIKING PDS-21 Wall Cavity Dryer. Professional Water Damage Restoration Equipment
The VIKING PDS 21 Pressurized Wall Cavity Dryer is a must-have for every water restoration professional. Engineered for precision and performance, it delivers super-heated, pressurized air up to 205°F—perfect for drying inside walls, under cabinets, and behind built-ins without needing air movers or attachments. Lightweight, stackable, and portable, this dryer includes two 100’ tubing rolls for maximum drying coverage and a plug-off system to boost pressure in key areas.
Built-in cord wrap and an easy-grip handle make jobsite transport hassle-free. The auto-restart thermal protection ensures safety and uninterrupted operation. Ideal for residential and commercial water damage restoration, the PDS-21 offers a strong return on investment and quickly pays for itself in just a few jobs. For efficient structural drying, mold prevention, and professional-grade results, the VIKING PDS-21 is your go-to solution.

The Right Wall Dryer for Me?
✅ PDS-21 is the original model, it is a heavier unit but contains 21 drying ports which allows additional entry points to dry up to 28 Feet of wall coverage. It is a louder model.
✅ PDS-12 is the next generation. It is lighter, higher drying capability with 12 drying ports which is better for more targeted drying and up to 16 feet of wall coverage. It is a quieter model.
✅ You cannot go wrong with either option

Viking PDS 21, Powerful 2-Stage Motor, Delivers Strong, Even Airflow. Dry Wall Cavities Thoroughly and Prevent Mold Formation
✅ 200 feet of plastic hoses connect to metal drying ports with up to 205F degrees of warm air
✅ Perfect for drying under sinks, behind cabinets, permanent fixture or any drywall
✅ Be the hero for your customer by saving them money

What comes in the box?
✅ 200 ft of durable tubing
✅ 21-hole diffuser for surgical heat delivery
✅ Comprehensive owner’s manual
✅ 1-year warranty to put you at ease
VIKING PDS-21 Top Reviews 4.5/5 ⭐⭐⭐⭐
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James Parker
⭐⭐⭐⭐⭐
They perform amazingly well! We’re very happy with them.
The heat is effective for drying, and they offer great wall coverage at a much lower price than an Injectidry. That said, they can't completely replace an Injectidry, especially for floor drying.
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Ken Bidwell
⭐⭐⭐⭐
Viking invented this kind of equipment, we feel it does by far the best job
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Dave Elwood
⭐⭐⭐⭐
Everything was perfect and exactly what we were looking for, plus the shipping was quick.
Frequently Asked Questions
What are the specifications?
What are the specifications?
Motor: 2-Stage Tangential By-Pass
Volts / Cycle: 115V / 9.0A
Rated Airflow: 92 CFM
Speeds: 1
Cord Length: 25 ft
Stackable: Yes
Tubing: 3/8" ID, 1/2" OD (Black, 200 ft)
Operating Temperature: Up to 205°F
Unit Weight: 19 lbs
Unit Dimensions: 20.5" x 16.7" x 18.5"
Box Weight: 35.6 lbs
Box Dimensions: 21" x 19" x 22"
Housing: Roto Molded Polyethylene
Safety Certifications: UL Approved
Motor Protection: Thermal Protection Switch + Auto Reset
UPC: 848025012529
How long does shipping take?
How long does shipping take?
95% of orders are delivered to our customers within 5 business days
Maximum 10 business days for more remote locations
Overnight shipping is available for emergency equipment needs for an additional charge. Feel free to call us for our options at 833-356-6323.
Can I return or exchange?
Can I return or exchange?
Yes we allow returns without issue. If you are not happy with the product for whatever reason and within 14 days of purchase, we will accept the return of the product and refund your purchase
What types of payment do we accept?
What types of payment do we accept?
We accept major credit cards (Visa, Mastercard, American Express), digital wallets (Apple Pay, Google Pay, Shop Pay) and PayPal
How long does it take to be refunded?
How long does it take to be refunded?
We accept returns for a full refund if you would like to return within 14 days.
Once we receive the product back from you, we will issue the refund within 10 business days or less.
Please review our shipping and return policy for full information.
How will I be notified the product has shipped?
How will I be notified the product has shipped?
From the moment we ship your product, you will receive an email confirmation with tracking information.
What if my product arrives damaged?
What if my product arrives damaged?
Please contact us as soon as possible. We will coordinate with you to get new equipment sent. Reach out to customer@floodbuds.com
Do you have a restocking fee for returns?
Do you have a restocking fee for returns?
Flood Buds does not charge any restocking fees.
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