Rainbow, D4C, SE, Main Unit (Refurbished)
Item Number R4366U · Rainbow®
$679.36
$100+ Orders Ship Free (48 states only)
120 volt item. This item requires 120 voltage. If purchasing for use outside the United States, please confirm your country's voltage.
- Brand
- Rainbow®
- Manufacturer
- Rexair
- Item Number
- R4366U
- Condition
- Refurbished
- Availability
- Limited
- Warranty
- 2 Years
- Model
- D4C
- Series
- Special Edition
- Voltage
- 120 VAC
- Weight
- 13lbs 0oz
Details
If you are having issues with your current model D4C SE (Special Edition), D4C, D3C or D3A, then you can order this model D4C SE (Special Edition) Rainbow, and it will fit up to all your current hoses and water pan.
The listed price reflects a $150 credit when returning your old main unit. A pre-paid return label will be included in the box.
Order and then call us for details, or call us first to ask any questions that you may have.
This model carries a complete 10-year labor warranty and pickup service at your doorstep. If something should go wrong, all you have to do is call our toll-free number and our specialists will help you troubleshoot or schedule a pickup.
FACTORY CERTIFIED
Our refurbished systems are done by factory authorized technicians, so you can feel confident you are getting what you pay for. If you are looking for a Rainbow to last the next 10–20 years without an issue, then understand we have that same thought in mind when doing our rebuilds.
WE DO NOT USE GENERIC PARTS OR ATTACHMENTS
We are the ONLY company on the internet that can make this claim! (Message us if you find anyone else!) All of our rebuilds are done with factory original parts. Over the years, many improvements have been done, and we perform all upgrades on our refurbished units before sending to you. This ensures you get the best performance and durability that Rainbow has to offer.
If you experience a problem that cannot be simply handled over the phone, we will have your unit picked up at your home the next day for free.
All warranty work is done on the same day.
NOTE: Does not include water basin.
Specifications
| Rated Horse Power | 1.3 |
|---|---|
| Voltage | 120 VAC |
| Amperage | 9.8 / 11 (PN-2) 10.8 (R-4375C) with power nozzle |
| Hertz | 25/60 |
| R.P.M. | 14,000 |
| Motor Speeds | 1-speed (on/off) |
| Motor Temperature Rise | 85C |
| Watts Input | 970 |
| Intake Diameter | 1.75 inches (4.4 cm) (inside diameter) |
| Hose Diameter | 1.25 inches (3.2 cm) (inside diameter) |
| Hose Length | 7 feet (2.1 m) |
| Sealed Hose Inlet Vacuum, Inches H2O | 60 inches of lift (14.9 kPa) |
| Volume Air Movement | 67 cubic feet per minute (31.6 L/s) |
| Power Cord | #17/2 SJT (Service-Junior-Thermoplastic) |
| Cord Length | 25 feet (7.6 m) |
| Water Capacity | 2 quarts (1.9 L) |
| Weight (with water pan and dolly) | 15 pounds 8 ounces (7.03 kg) |
| Filtration | 3 Microns |
| Noise Level | 72 decibels "A" Scale |
| Manufacturer / Country of Origin | Rexair, LLC / Cadillac, Michigan U.S.A. |
| Type of Material | Acrylonitrile Butadiene Styrene (ABS) Plastic |
|---|---|
| Thickness of Material | .93 |
| Length | 13 inches (33.0 cm) |
|---|---|
| Width | 12 inches (30.5 cm) |
| Height with Water Pan | 15 inches (38.1 cm) |
| Height with Dolly | 17 inches (43.2 cm) |
| Underwriters Laboratories Approved | Yes |
|---|---|
| Canadian Standards Approval | Yes |
| Wet Pickup Approved | Yes |
| Motor Design | High efficiency motor is of a four stage construction, consisting of two stationary stages and two revolving fans both having six spiral blades each. Motor cooling fan draws air in from around the cap and cap cover for motor cooling. |
|---|---|
| Motor Brushes | Increased motor brush height along with a taller armature commutator returned a more efficient motor. |
| Motor Protection | Thermal cut-off feature that prevents motor from burning up in case unit tips over or if water gets up in motor. |
| Motor Type / Style | (Type) Brush Mechanical Commutation (Single Phase) - (Style) Bypass Double Insulated with Nickel Steel Shaft |
Warranty
This model carries a complete 10-year labor and 2-year parts warranty against manufacturer defects. This warranty also covers free return delivery.
If something should go wrong, all you have to do is call the toll-free number, and our specialists will help you troubleshoot or schedule a pickup service at your doorstep.
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Reviews
5/5 by raymond l biggs on Apr 28 2026
haven't used the vacuum that much yet but seems to be fine.
5/5 by William on Jan 26 2026
order was replacement for vacuum brought from Rainvac 20 years ago. Customer service was quick to response to questions and resolve issues. Rainbow Vacuum only one we use great.
5/5 by Dianne Hadorn on Aug 27 2025
The machine works amazingly well. We bought a new one in 1994, and I didn't realize just how much the old one had slowed down and was slipping. First time using the new one, it brought back excitement to hear he debris clanking as it went through the metal attachments. Refurbished but works amazingly. And the process to order was simple and quick