Rain-X 810355 Repellency Wiper Blades – 22-Inch & 21-Inch Water-Repellent Beam Wiper Set

What’s Included?

The Rain-X 810355 set includes:

• 1 × 22-inch windshield wiper
• 1 × 21-inch windshield wiper

This makes it convenient for vehicles that specifically require this front-blade combination.

Do not assume the 22-inch blade automatically belongs on the driver side for every vehicle. Always follow the application listing for the exact year, make and model.

What Makes Rain-X Repellency Different?

A conventional windshield wiper primarily performs one task:

remove water from the windshield.

Rain-X Repellency adds another function:

apply a water-repelling treatment to the glass during use.

Rain-X says the treatment transfers from the blade squeegee to the windshield during initial operation. Once activated, water tends to bead and move away rather than remaining as a broad sheet across the glass.

This creates a two-part approach to visibility:

Mechanical wiping + water-repellent windshield treatment

Activate the Water-Repellent Coating

Rain-X specifically recommends an initial activation process.

After installing the blades:

1. Start with a clean windshield.
2. Remove all protective blade covers.
3. Confirm both blades are locked securely.
4. Run the wipers continuously for approximately two minutes.
5. Check that both blades wipe smoothly and maintain full contact.

Rain-X states that this initial operation transfers the coating onto the windshield and activates the water-repelling effect.

Water Beading During Rain

The Rain-X treatment is designed to alter the way water behaves on the windshield.

Instead of forming a continuous film, water tends to form:

small beads

that can be moved by:

• The wiper blades
• Vehicle airflow
• Gravity

This can help maintain clearer sightlines during heavy rain and highway driving.

Helps With Snow, Sleet and Ice

Rain-X also states that its Repellency coating helps with winter-weather contaminants including:

• Ice
• Snow
• Sleet

The coating does not replace a defroster, scraper or proper snow removal, but it can complement those systems.

Premium Beam-Blade Construction

Rain-X classifies Repellency as a:

premium beam wiper blade.

Beam blades use an integrated flexible structure instead of the exposed articulated frame found on conventional windshield wipers.

Potential benefits include:

• More uniform windshield contact
• Better conformity to curved glass
• Reduced exposed hardware
• Cleaner aerodynamic profile
• More consistent wiping pressure

This makes the Repellency line particularly suitable for modern curved windshields.

Why Windshield Curvature Matters

Modern windshields are highly curved.

A blade that cannot conform correctly may develop:

• Edge lift
• Missed areas
• Streaking
• Chatter
• Uneven wiping

Beam-style construction allows the blade to flex across the windshield more continuously.

Correct application still matters because windshield curvature varies from one vehicle to another.

All-Weather Design

The Repellency line is designed for use across changing weather conditions.

Potential applications include:

• Summer rain
• Highway spray
• Winter sleet
• Light snow
• Cold-weather driving

Rain-X specifically markets the water-repellency technology as useful in wet and winter conditions.

22-Inch Blade

One blade in this package measures:

22 inches

or approximately:

559mm.

This blade is used in the appropriate front position specified by the vehicle application.

21-Inch Blade

The companion blade measures:

21 inches

or approximately:

533mm.

The difference in blade lengths helps account for windshield shape, wiper pivot geometry and sweep area.

Why Two Different Wiper Sizes?

Many vehicles use mismatched front wiper lengths.

That is intentional.

Different blade lengths help account for:

• Windshield width
• Windshield curvature
• Wiper pivot position
• Blade overlap
• Cowl geometry

The goal is maximum useful glass coverage without allowing the blades to collide with each other or surrounding trim.

Don’t Select Wipers by Length Alone

A vehicle using 22-inch and 21-inch blades does not automatically use Rain-X 810355.

Correct fitment can also depend on:

• Year
• Make
• Model
• Wiper-arm connection
• Driver/passenger position
• Windshield geometry

Rain-X maintains a vehicle-specific blade finder because the correct replacement depends on more than blade length. Current Rain-X blade-finder pages provide vehicle-specific blade sizes, arm styles and installation information.

Verify Fitment Before Ordering

Always enter:

Year → Make → Model

into the vehicle fitment checker before purchasing.

Rain-X’s application system is designed to identify the correct blade based on the vehicle rather than simply matching the inch measurement.

This is particularly important as modern vehicles use many different arm connections.

Multi-Fit Adapter System

Rain-X provides current Repellency installation instructions for several common wiper-arm designs, including:

• Large J-hook
• Small J-hook
• Large pin
• Small pin
• PTB
• Narrow PTB
• I&L

That demonstrates that the Repellency platform uses a broad multi-fit adapter strategy rather than a single hook-only connector.

Universal Doesn’t Mean Every Vehicle

The product may be marketed with very broad compatibility, but no replacement blade should be treated as literally universal.

Before purchasing, verify:

• Correct blade size
• Correct position
• Correct adapter
• Correct vehicle application

Rain-X’s own current blade finder emphasizes vehicle-specific sizing and arm-type information.

No-Tool Installation

Installation is designed to be straightforward when the blade matches the vehicle.

The general process is:

1. Raise the wiper arm carefully.
2. Release the old blade.
3. Configure or align the Rain-X adapter.
4. Attach the new blade.
5. Confirm it locks securely.
6. Remove any protective cover.
7. Lower the blade gently onto the windshield.

The exact procedure varies with the wiper-arm type.

Rain-X publishes dedicated Repellency instructions for the supported connections.

Remove the Yellow Squeegee Cover

The supplied product information specifically notes that the:

yellow protective squeegee cover

must be removed before using the blade.

That cover protects the wiping edge during shipping.

It is not part of the operating blade.

Leaving it installed can cause:

• Poor wiping
• Skipping
• Noise
• Streaking
• Failure to transfer the water-repellent coating properly

If your new wipers perform like windshield decorations, checking for the yellow shipping cover is a productive first step.

Clean the Windshield Before Activation

Rain-X recommends activating its water-repellency treatment on a clean windshield.

Before installation, remove:

• Road film
• Bugs
• Tree sap
• Oil
• Wax residue
• Dirt
• Silicone contamination

Clean glass gives the wiping edge a better surface on which to transfer the Rain-X treatment.

Rain-X Repellency vs. Conventional Wipers

Conventional Wiper

Primarily:

moves water off the glass

Rain-X Repellency

Provides:

beam wiping + windshield water repellency

That added treatment is the main reason to choose Repellency over a basic replacement blade.

Rain-X Repellency vs. WeatherBeater

Rain-X WeatherBeater and Repellency occupy different positions in the lineup.

WeatherBeater

Focuses on:

• Conventional framed construction
• Natural rubber
• Value
• Traditional replacement

Repellency

Focuses on:

• Premium beam construction
• Water-repellent treatment
• Hydrophobic windshield behavior
• Modern multi-fit adapters

This distinction gives buyers a clear choice between a traditional value-oriented replacement and a premium water-repellent beam blade.

Rain-X Repellency vs. Applying Rain-X Separately

Traditional Rain-X glass products require a separate application to the windshield.

Repellency blades transfer their treatment during operation.

That can appeal to drivers who want the water-beading effect without adding a separate manual treatment step to their regular glass maintenance.

Beam Wipers vs. Conventional Wipers

Conventional Wipers

Use a framed structure with articulated pressure points.

Advantages often include:

• Lower cost
• Familiar construction
• Broad availability

Beam Wipers

Use an integrated flexible structure.

Potential advantages include:

• More uniform pressure
• Lower aerodynamic profile
• Fewer exposed joints
• Better adaptation to curved glass

For a broader comparison, read Pro Street’s:

Best Windshield Wiper Blades for Clearer Drives

High-Speed Rain Performance

Water repellency can become particularly noticeable during highway driving.

As water beads on treated glass, airflow can help move droplets upward and away from the driver’s field of view.

The beam blade still performs the primary wiping function, but the hydrophobic treatment can complement it.

Road Spray Still Requires Washer Fluid

Water repellency does not magically remove road grime.

Truck spray often contains:

• Dirt
• Fine oil residue
• Tire contamination
• Road salt

Use windshield washer fluid to clean these contaminants.

Water-repellent technology works best on clean glass.

Summer Heat

Wiper blades experience severe heat while parked.

A windshield in direct sunlight can become substantially hotter than the surrounding air.

Inspect blades periodically for:

• Hardened material
• Cracks
• Deformation
• Uneven wiping

Winter Use

Before operating wipers in freezing conditions:

1. Defrost the windshield.
2. Remove heavy snow.
3. Free the blade from the glass.
4. Remove major ice buildup.

Do not expect the wiper motor to perform snow-removal duty.

It is a windshield-wiper system, not a miniature snowplow.

Signs Your Existing Wipers Need Replacement

Common symptoms include:

• Streaking
• Chattering
• Smearing
• Skipping
• Squeaking
• Torn wiping edges
• Missed areas
• Reduced visibility

If poor visibility becomes obvious only during a storm, replacement probably should have happened earlier.

Clean the Wiping Edge

Sometimes a good blade simply becomes contaminated.

Use a clean damp cloth to wipe the squeegee edge.

This can remove:

• Dust
• Dirt
• Road film

If streaking persists after cleaning the glass and wiping edge, replacement may be appropriate.

Inspect the Wiper Arms

While replacing the blades, inspect the arms for:

• Corrosion
• Bent sections
• Weak spring pressure
• Loose hardware
• Damaged attachment points

A premium blade cannot maintain good contact if the arm itself is damaged.

Protect the Windshield During Installation

Place a folded towel between the raised wiper arm and windshield while changing the blade.

If the bare metal arm snaps down, it can damage the glass.

A towel is inexpensive.

Windshields have apparently decided otherwise.

Test Both Blades After Installation

Once installed:

1. Apply washer fluid.
2. Run the wipers at low speed.
3. Confirm smooth movement.
4. Check for interference.
5. Run at higher speed.
6. Activate the Repellency treatment for approximately two minutes.

Look for:

• Full glass contact
• No chatter
• No adapter movement
• No blade collision
• Smooth operation

Replace Both Front Wipers Together

This two-piece package makes it convenient to replace both front blades at once.

Both blades are usually exposed to similar:

• Heat
• Rain
• UV
• Ozone
• Age

Replacing the pair helps maintain more consistent wiping performance.

Who Should Buy Rain-X 810355?

This package makes sense for drivers whose vehicles specifically call for compatible:

22-inch + 21-inch front wiper blades

and who want:

• Premium beam construction
• Water-repellent windshield treatment
• All-season performance
• Broad adapter compatibility
• A matched two-blade package

Exact vehicle fitment must be confirmed before ordering.

Why Buy Rain-X 810355 Repellency Wipers?

Key features include:

• 22-inch and 21-inch blade combination
• Two-blade package
• Premium beam construction
• Rain-X water-repellent treatment
• Water-beading windshield technology
• Multiple supported arm connections
• All-season design
• Vehicle-specific fitment resources
• Simple installation
• Two-minute coating activation procedure

Rain-X confirms that the Repellency coating transfers from the blade to the windshield and is designed to remain active for the life of the blade once properly activated.

Important Fitment Note

Do not select Rain-X 810355 based only on its 22-inch and 21-inch blade lengths.

Confirm the vehicle using:

Year → Make → Model

and verify the required arm connection.

Rain-X provides vehicle-specific blade lookup information that includes blade sizing and arm-type guidance.

Internal Pro Street Reference

For help comparing beam, conventional, silicone and water-repellent wiper blades:

Best Windshield Wiper Blades for Clearer Drives

External Rain-X References

Rain-X explains how the Repellency technology transfers onto the windshield here:

Rain-X Water Repellency Technology

For installation instructions covering multiple compatible wiper-arm types:

Rain-X Repellency Installation Instructions

Use Rain-X’s vehicle application lookup to confirm exact blade sizing and connection before purchase.