Hoover T-Series WindTunnel Pet Rewind Bagless Upright Model #UH70210 and WindTunnel MAX Pet Plus Multi-Cyclonic Bagless Upright Model #UH70605 are 2 Hoover pet vacuum cleaners. There are some difference between them, let’s compare below.

Hoover UH70210 vs UH70605
images from manufacturer

Height Adjustment:
The UH70210 has 5-level manual height adjustment while the UH70605 equips with 7 settings.

Color:
The UH70210 is a blue while the UH70605 is grey.

Nozzle Width: The nozzle width on UH70605 is 1.5-inch wider.
The UH70605 features 15-inch cleaning path width while the nozzle width on UH70210 is 13.5 inches.

Cyclonic Air Action:
The UH70605 features Multi-Cyclonic Technology while the UH70210 features Dual Cyclonic Air System.

Hose:
The hose on UH70210 is 8 ft long while the UH70605 has 12 ft long stretch hose.

Weight: Hoover UH70605 is a bit heavier than the UH70210.
The Hoover UH70210 has a weight of 17.8 pounds while the UH70605 weighs 18.4 pounds.
ft.

Cord Length: The cord on UH70605 is longer than UH70210.
The cord on UH70210 is 25 ft long while the cord length of the UH70605 is 28 ft.

Onboard Tools:
The Hoover UH70210 comes with Turbo Pet Tool, 12-Inch Extension Wand, Crevice Tool, Pet Upholstery Tool
While the UH70605 comes with Pet Turbo Tool, 24-Inch Telescoping Extension Wand, 12-Inch Crevice Tool, Dusting Brush, Pet Static Tool

Price: The UH70605 is $10 more expensive than the UH70210.
UH70210 is priced at $159.99 while the UH70605 costs $169.99 (prices checked on June 25, 2013, at hoover.com)

The similarities between them:
equip with headlamp for cleaning low light spots;
have automatic cord rewind system to quickly retracts cord and lets cord store inside the vacuum cleaner compactly.
have HEPA filter;
powered by 12 amps motor;
carry 2 year limited warranty;
indicator light to remind you to dust bin and filter;
have ON/OFF pedal to control the brushroll, you can turn brush on or off to clean different floor types;
feature D-Shaped folding handle that allows you to fold down for compact storage;

You can download manuals to learn details if you like:
UH70210 Product Manual Link: http://hoover.com/file/574/
UH70605 Product Manual Link: http://hoover.com/file/581/

We would appreciate you sharing more info here if you know more difference between UH70605 and UH70210.

UH71209 vs UH71214
images from manufacturer

It seems that there is no mechanism difference between Hoover UH71214 and UH71209 except for the color.
The color on the base of UH71209 is mostly red while the base of the UH71214 is red with black.

The same thing they have:
WindTunnel Technology cleans all floors better;
Multi-Stage Cyclonic Filtration traps dirt and dust before it reaches the filter with no loss of suction;
Washable filter with HEPA Media filter trap over 99.9% of small particles down to 0.3 microns;
25 ft power cable with auto cord rewind provide quick winding and neat cord storage;
Beater bar On/Off pedal makes it a snap to switch between hard floors and carpeting;
5 height settings adjust as needed to vacuum different flooring types;
10 ft stretch hose provides long cleaning reach with wand and crevice tool;
On-Board Tools, a Turbo Tool, 24″ Telescoping Extension Wand, Dusting Brush, Crevice Tool, for cleaning fruniture, lampshades, hard to reach areas, etc.
Have Bumper that protects furniture;
System Check Indicator light to remain you when the filter and dirt cup need to be checked;
13.5-inch cleaning path;
Weighs 18 pounds;
12 amps motor;
D-Shaped type handle;
Dual Cyclonic Air System;
limited 2-year warranty.

Do you know more difference between UH71214 and UH71209? If yes, we would appreciate you if you could share info here.

These are 2 Hoover vacuum cleaners for pets, the difference between Hoover UH70085 and UH70210 are:

UH70210 vs UH70085
images from manufacturer

Handle:
The Hoover UH70210 equips with a folding handle that allows you to fold it down to store neatly while the handle on UH70085 is unfoldable.

Nozzle Width: The nozzle width on UH70085 is wider.
The UH70085 features 15-inch nozzle width while the UH70210 has 13.5 inch nozzle width.

Product Weight: Hoover UH70085 is heavier than the UH70210.
The Hoover UH70210 weighs 17.8 pounds whereas the UH70085 weighs 22 pounds.

Cord Length: The UH70085 has a longer power cord.
The cord on UH70210 has a 25 ft cord while the cord length on UH70085 is 28 ft.

Warranty:
The UH70085 carries 1 year limited warranty while the UH70210 has a 2-year limited warranty.

Color:
The UH70210 is a blue while the UH70085 is red.

Price: The UH70085 is $40 more expensive than the UH70210.
UH70210 is priced at $159.99 while the UH70085 costs $199.99 (prices from hoover.com, checked on June 24, 2013)

The similarities:
headlight for vacuuming dark corners;
eight feet stretch hose;
height adjustment with 5 settings
auto cord rewind to retracts cable automatically and allows cord stores neatly inside.
come with pet hair cleaning tool;
equip with HEPA filter to better air quality;
bottom empty dirt cup;
powered by 12 amps motor;
system check indicator to warn you to check filter and dust cup when it is needed.
beater bar can be shut off by touching a foot petal for cleaning bare floor.

To learn details, you can download:
UH70210 Manual: http://hoover.com/file/574/
UH70085 Manual: http://hoover.com/file/561/

We would appreciate you sharing info here if you know more difference between UH70085 and UH70210.

The major difference between UH70140 and UH70120 are:

Brushroll ON/OFF Switch:
The Hoover UH70140 equips with brushroll ON/OFF function, you can step a petal to turn on or shut off the brushroll for suction only mode, whereas the UH70120 has no brush ON/OFF switch.

Height Adjustment:
Both of them equip with the height adjustment, however, there is slight difference. The UH70120 has 5 height settings while the UH70140 has 3 levels to adjust.

Headlight:
The UH70140 has a headlight that allows you to clean areas like dark corners thoroughly whereas the UH70120 have no such headlight.

Air System:
The UH70120 features Dual Cyclonic Air System while the UH70140 uses Multi-Stage Cyclonic Technology.

Color:
The UH70120 is green while the UH70140 is red.

Price: The UH70120 is $20 cheaper than the UH70140.
The UH70120 is priced at $129.99 at hoover.com while the UH70140 is priced at $129.99 (prices checked on June 23, 2013)

Similarities between UH70140 and UH70120:
have auto cord rewind function;
equip with motorized brush;
powered by 12 amps motor;
weighs 16.5 pounds;
8 ft stretch hose;
13.5-inch cleaning path width;
include HEPA filter;
2 year limited warranty;
comes with onboard tools: Turbo Hand Tool, Upholstery/Dusting Brush, Extension Wand, Crevice Tool;
indicator to tell you when to check dust bin and filter;
scuff guard bumper protects your furniture;
fingertip power control.

You can learn more by reading manuals:
UH70120 Manual Download: http://hoover.com/file/570/
UH70140 Manual Download: http://hoover.com/file/588/

Please share below if you know more difference between Hoover UH70120 and UH70140.

Below is the difference between Hoover UH70120 and UH70210:

UH70210 vs UH70120
images from manufacturer

The Titles:
UH70210: T-Series WindTunnel Pet Rewind Bagless Upright model #UH70210
UH70120: T-Series WindTunnel Rewind Plus Bagless Upright model #UH70120
Thr UH70210 is a model for pets while the UH70120 is not a pet specific model. Some major difference between these hoover T-Series WindTunnel general model and pet model are the filter and tools they come with.

Filtration:
Pet models have a Carbon Filter to absorb pet smell, the UH70210 features this whereas the general model UH70120 has no Carbon Filter.

Onboard Tools:
The UH70120 comes with a Turbo Hand Tool, a Crevice Tool, a combo Upholstery/Dusting Brush, and a 12″ extension wand.
The UH70210 comes with a Turbo Pet Hand Tool tool, a Crevice Tool, a Pet Upholstery Tool, and a 12″ extension wand.
The difference between the general Turbo Hand Tool and Turbo Pet Hand Tool, combo Upholstery/Dusting Brush and Pet Upholstery Tool are the pet tools feature rubber blades to help grab pet hair from surfaces that are being cleaned while the standard types of tool have no rubber blades.

Handle:
The Hoover UH70210 has a folding handle which can be folded down for storage while the handle on UH70120 cannot be folded.

Brushroll ON/OFF Control:
The Hoover UH70210 features a pedal to turn on/off the brushroll whereas the UH70120 does not have a switch to turn off the spinning brush.

Headlight:
The UH70210 equips with a headlight while there is no headlamp on UH70120.

Price: The UH70210 is $30 more expensive than the UH70120.
The UH70210 is priced at $159.99 at hoover.com while the UH70120 is priced at $129.99. (prices checked on June 22, 2013)

Product Weight: The UH70210 is heavier.
The UH70120 has a weight of 16.5 pounds while the UH70210 weighs 17.8 pounds.

Color:
The UH70210 is blue whereas the UH70120 is green.

Similarities between UH70210 and UH70120:
equip with motorized brush;
have 12 amps motor;
bagless;
25 ft cord;
8 ft long hose;
13.5-inch nozzle width;
have auto cord retractor;
have HEPA filter;
2 year limited warranty;
features Dual Cyclonic Air System;
feature 5 adjustable height settings but suction power is not adjustable.

Download manuals:
UH70120 Manual: http://hoover.com/file/570/
UH70210 Manual: http://hoover.com/file/574/

Please share below if you know more difference between Hoover UH70600 and UH70210.